nih-gov/www.ncbi.nlm.nih.gov/medgen/C0238052/index.html

1189 lines
No EOL
154 KiB
HTML
Raw Blame History

This file contains invisible Unicode characters

This file contains invisible Unicode characters that are indistinguishable to humans but may be processed differently by a computer. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" lang="en" xml:lang="en">
<head xmlns:xi="http://www.w3.org/2001/XInclude"><meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<!-- meta -->
<meta name="keywords" content="C0238052, bogaert-scherer-epstein disease, van, cerebral cholesterinoses, cerebral cholesterinosis, cerebrotendinous cholesterinosis, cerebrotendinous xanthomatoses, cerebrotendinous xanthomatosis, cholestanol storage disease, cholestanolosis, ctx, ctx - cerebrotendinous xanthomatosis, ctx: cerebrotendinous xanthomatosis, cyp27a1, disease or syndrome, disease, van bogaert-scherer-epstein, sterol 27-hydroxylase deficiency, van bogaert scherer epstein disease, van bogaert-scherer-epstein disease, van bogaert-scherer-epstein syndrome, xanthomatoses, cerebrotendinous, xanthomatosis, cerebrotendinous, autosomal dominant, autosomal recessive, birth defects, chromosomal disease, chromosome, clinical features, clinical findings, clinical genetics, clinical recommendations, clinvar, congenital chromosomal disease, consumer genetic resources, cytogenetic location, disease characteristics, disease definitions, disease descriptions, disease ontology, disease synonyms, disease vocabulary, dysmorphology, entrez, familial disease, gene, gene-disease relationship, genereviews, genetic disease, genetic disorder, genetic terminology, genetic testing registry, genetics home reference, genomic disease, gtr, hereditary disease, heritable disease, hpo, human phenotype ontology, inherited disease, management guidelines, maternal inheritance, medgen, medical genetics, medical subject headings, mesh, mitochondrial inheritance, mode of inheritance, national center for biotechnology information, national institutes of health, national library of medicine, ncbi, nih, nlm, omim, ordo, orphanet, paternal inheritance, phenome, position statements, professional practice guidelines, rare disease, reference sequence, refseq, snomed ct, syndrome, undiagnosed diseases, x-linked recessive" /><meta name="description" content="Cerebrotendinous xanthomatosis (CTX) is a lipid storage disease characterized by infantile-onset diarrhea, childhood-onset cataract, adolescent- to young adult-onset tendon xanthomas, and adult-onset progressive neurologic dysfunction (dementia, psychiatric disturbances, pyramidal and/or cerebellar signs, dystonia, atypical parkinsonism, peripheral neuropathy, and seizures). Chronic diarrhea from infancy and/or neonatal cholestasis may be the earliest clinical manifestation. In approximately 75% of affected individuals, cataracts are the first finding, often appearing in the first decade of life. Xanthomas appear in the second or third decade; they occur on the Achilles tendon, the extensor tendons of the elbow and hand, the patellar tendon, and the neck tendons. Xanthomas have been reported in the lung, bones, and central nervous system. Some individuals show cognitive impairment from early infancy, whereas the majority have normal or only slightly impaired intellectual function until puberty; dementia with slow deterioration in intellectual abilities occurs in the third decade in more than 50% of individuals. Neuropsychiatric symptoms such as behavioral changes, hallucinations, agitation, aggression, depression, and suicide attempts may be prominent. Pyramidal signs (i.e., spasticity) and/or cerebellar signs almost invariably become evident between ages 20 and 30 years. The biochemical abnormalities that distinguish CTX from other conditions with xanthomas include high plasma and tissue cholestanol concentration, normal-to-low plasma cholesterol concentration, decreased chenodeoxycholic acid (CDCA), increased concentration of bile alcohols and their glyconjugates, and increased concentrations of cholestanol and apolipoprotein B in cerebrospinal fluid." /><meta name="robots" content="index,nofollow,noarchive" />
<meta name="ncbi_app" content="entrez" /><meta name="ncbi_db" content="medgen" /><meta name="ncbi_term" content="c0238052[conceptid]" /><meta name="ncbi_report" content="fullreport" /><meta name="ncbi_format" content="html" /><meta name="ncbi_pagesize" content="20" /><meta name="ncbi_sortorder" content="default" /><meta name="ncbi_pageno" content="1" /><meta name="ncbi_resultcount" content="1" /><meta name="ncbi_op" content="search" /><meta name="ncbi_pdid" content="fullreport" /><meta name="ncbi_sessionid" content="CE8B5AF87C7FFCB1_0191SID" /><meta name="ncbi_filter" content="clinical" /><meta name="ncbi_stat" content="false" /><meta name="ncbi_hitstat" content="false" />
<!-- title -->
<title>Cholestanol storage disease (Concept Id: C0238052)
- MedGen - NCBI</title>
<!-- Common JS and CSS -->
<script type="text/javascript">
var ncbi_startTime = new Date();
</script>
<script type="text/javascript" src="https://static.pubmed.gov/core/jig/1.15.10/js/jig.min.js"></script>
<link type="text/css" href="/corehtml/pmc/css/figpopup.css" rel="stylesheet" />
<script type="text/javascript" src="/corehtml/pmc/js/figpopup.min.js"></script>
<link xmlns="http://www.w3.org/1999/xhtml" type="text/css" rel="stylesheet" href="//static.pubmed.gov/portal/portal3rc.fcgi/4218191/css/4207974/4206132.css" xml:base="http://127.0.0.1/sites/static/header_footer/" />
<link rel="shortcut icon" href="//www.ncbi.nlm.nih.gov/favicon.ico" /><meta name="ncbi_phid" content="CE8DA6107CA630B10000000000DF00C6.m_35" /><script type="text/javascript"><!--
var ScriptPath = '/portal/';
var objHierarchy = {"name":"EntrezSystem2","type":"Layout","realname":"EntrezSystem2",
"children":[{"name":"EntrezSystem2.PEntrez","type":"Cluster","realname":"EntrezSystem2.PEntrez",
"children":[{"name":"EntrezSystem2.PEntrez.DbConnector","type":"Portlet","realname":"EntrezSystem2.PEntrez.PEntrez.DbConnector","shortname":"DbConnector"},
{"name":"EntrezSystem2.PEntrez.ParamContainer","type":"Portlet","realname":"EntrezSystem2.PEntrez.PEntrez.ParamContainer","shortname":"ParamContainer"},
{"name":"EntrezSystem2.PEntrez.MyNcbi","type":"Portlet","realname":"EntrezSystem2.PEntrez.PEntrez.MyNcbi","shortname":"MyNcbi"},
{"name":"EntrezSystem2.PEntrez.UserPreferenceUrlParamContainer","type":"Portlet","realname":"EntrezSystem2.PEntrez.PEntrez.UserPreferenceUrlParamContainer","shortname":"UserPreferenceUrlParamContainer"},
{"name":"EntrezSystem2.PEntrez.GridProperty","type":"Portlet","realname":"EntrezSystem2.PEntrez.PEntrez.GridProperty","shortname":"GridProperty"},
{"name":"EntrezSystem2.PEntrez.MedGen","type":"Cluster","realname":"EntrezSystem2.PEntrez.MedGen",
"children":[{"name":"EntrezSystem2.PEntrez.MedGen.NoPortlet","type":"Portlet","realname":"EntrezSystem2.PEntrez.MedGen.Entrez_Database.NoPortlet","shortname":"NoPortlet"},
{"name":"EntrezSystem2.PEntrez.MedGen.MedGen_PageController","type":"Portlet","realname":"EntrezSystem2.PEntrez.MedGen.MedGen_PageController","shortname":"MedGen_PageController"},
{"name":"EntrezSystem2.PEntrez.MedGen.MedGen_SearchBar","type":"Portlet","realname":"EntrezSystem2.PEntrez.MedGen.MedGen_SearchBar","shortname":"MedGen_SearchBar"},
{"name":"EntrezSystem2.PEntrez.MedGen.MedGen_BotRequest","type":"Portlet","realname":"EntrezSystem2.PEntrez.MedGen.MedGen_BotRequest","shortname":"MedGen_BotRequest"},
{"name":"EntrezSystem2.PEntrez.MedGen.MedGen_LimitsTab","type":"Portlet","realname":"EntrezSystem2.PEntrez.MedGen.MedGen_LimitsTab","shortname":"MedGen_LimitsTab"},
{"name":"EntrezSystem2.PEntrez.MedGen.Entrez_Facets","type":"Portlet","realname":"EntrezSystem2.PEntrez.MedGen.Entrez_Database.Entrez_Facets","shortname":"Entrez_Facets"},
{"name":"EntrezSystem2.PEntrez.MedGen.Entrez_Clipboard","type":"Portlet","realname":"EntrezSystem2.PEntrez.MedGen.Entrez_Database.Entrez_Clipboard","shortname":"Entrez_Clipboard"},
{"name":"EntrezSystem2.PEntrez.MedGen.MedGen_StaticParts","type":"Portlet","realname":"EntrezSystem2.PEntrez.MedGen.MedGen_StaticParts","shortname":"MedGen_StaticParts"},
{"name":"EntrezSystem2.PEntrez.MedGen.Entrez_Messages","type":"Portlet","realname":"EntrezSystem2.PEntrez.MedGen.Entrez_Database.Entrez_Messages","shortname":"Entrez_Messages"},
{"name":"EntrezSystem2.PEntrez.MedGen.NcbiJSCheck","type":"Portlet","realname":"EntrezSystem2.PEntrez.MedGen.Entrez_Database.NcbiJSCheck","shortname":"NcbiJSCheck"},
{"name":"EntrezSystem2.PEntrez.MedGen.NCBIFooter_dynamic","type":"Cluster","realname":"EntrezSystem2.PEntrez.MedGen.Entrez_Database.NCBIFooter_dynamic",
"children":[{"name":"EntrezSystem2.PEntrez.MedGen.NCBIFooter_dynamic.Footer_ExtraData","type":"Portlet","realname":"EntrezSystem2.PEntrez.MedGen.Entrez_Database.NCBIFooter_dynamic.Footer_ExtraData","shortname":"Footer_ExtraData"},
{"name":"EntrezSystem2.PEntrez.MedGen.NCBIFooter_dynamic.NCBIFooter_dynamic","type":"Cluster","realname":"EntrezSystem2.PEntrez.MedGen.Entrez_Database.NCBIFooter_dynamic.NCBIFooter_dynamic",
"children":[{"name":"EntrezSystem2.PEntrez.MedGen.NCBIFooter_dynamic.NCBIFooter_dynamic.NCBIBreadcrumbs","type":"Portlet","realname":"EntrezSystem2.PEntrez.MedGen.Entrez_Database.NCBIFooter_dynamic.NCBIFooter_dynamic.NCBIBreadcrumbs","shortname":"NCBIBreadcrumbs"},
{"name":"EntrezSystem2.PEntrez.MedGen.NCBIFooter_dynamic.NCBIFooter_dynamic.NCBIHelpDesk","type":"Portlet","realname":"EntrezSystem2.PEntrez.MedGen.Entrez_Database.NCBIFooter_dynamic.NCBIFooter_dynamic.NCBIHelpDesk","shortname":"NCBIHelpDesk"},
{"name":"EntrezSystem2.PEntrez.MedGen.NCBIFooter_dynamic.NCBIFooter_dynamic.NCBIApplog_NoScript_Ping","type":"Portlet","realname":"EntrezSystem2.PEntrez.MedGen.Entrez_Database.NCBIFooter_dynamic.NCBIFooter_dynamic.NCBIApplog_NoScript_Ping","shortname":"NCBIApplog_NoScript_Ping"}]}]},
{"name":"EntrezSystem2.PEntrez.MedGen.MedGen_ResultsPanel","type":"Cluster","realname":"EntrezSystem2.PEntrez.MedGen.MedGen_ResultsPanel",
"children":[{"name":"EntrezSystem2.PEntrez.MedGen.MedGen_ResultsPanel.blankToolPanel","type":"Portlet","realname":"EntrezSystem2.PEntrez.MedGen.MedGen_ResultsPanel.Entrez_ResultsPanel.blankToolPanel","shortname":"blankToolPanel"},
{"name":"EntrezSystem2.PEntrez.MedGen.MedGen_ResultsPanel.MedGen_ResultsController","type":"Portlet","realname":"EntrezSystem2.PEntrez.MedGen.MedGen_ResultsPanel.MedGen_ResultsController","shortname":"MedGen_ResultsController"},
{"name":"EntrezSystem2.PEntrez.MedGen.MedGen_ResultsPanel.MedGen_FiltersPortlet","type":"Portlet","realname":"EntrezSystem2.PEntrez.MedGen.MedGen_ResultsPanel.MedGen_FiltersPortlet","shortname":"MedGen_FiltersPortlet"},
{"name":"EntrezSystem2.PEntrez.MedGen.MedGen_ResultsPanel.Entrez_Pager","type":"Portlet","realname":"EntrezSystem2.PEntrez.MedGen.MedGen_ResultsPanel.Entrez_ResultsPanel.Entrez_Pager","shortname":"Entrez_Pager"},
{"name":"EntrezSystem2.PEntrez.MedGen.MedGen_ResultsPanel.MedGen_DisplayBar","type":"Portlet","realname":"EntrezSystem2.PEntrez.MedGen.MedGen_ResultsPanel.MedGen_DisplayBar","shortname":"MedGen_DisplayBar"},
{"name":"EntrezSystem2.PEntrez.MedGen.MedGen_ResultsPanel.HelpFormAttributes","type":"Portlet","realname":"EntrezSystem2.PEntrez.MedGen.MedGen_ResultsPanel.Entrez_ResultsPanel.HelpFormAttributes","shortname":"HelpFormAttributes"},
{"name":"EntrezSystem2.PEntrez.MedGen.MedGen_ResultsPanel.Entrez_Collections","type":"Portlet","realname":"EntrezSystem2.PEntrez.MedGen.MedGen_ResultsPanel.Entrez_ResultsPanel.Entrez_Collections","shortname":"Entrez_Collections"},
{"name":"EntrezSystem2.PEntrez.MedGen.MedGen_ResultsPanel.SpellCheck","type":"Portlet","realname":"EntrezSystem2.PEntrez.MedGen.MedGen_ResultsPanel.Entrez_ResultsPanel.SpellCheck","shortname":"SpellCheck"},
{"name":"EntrezSystem2.PEntrez.MedGen.MedGen_ResultsPanel.SearchEngineReferralCheck","type":"Portlet","realname":"EntrezSystem2.PEntrez.MedGen.MedGen_ResultsPanel.Entrez_ResultsPanel.SearchEngineReferralCheck","shortname":"SearchEngineReferralCheck"},
{"name":"EntrezSystem2.PEntrez.MedGen.MedGen_ResultsPanel.WrongDbSensor","type":"Portlet","realname":"EntrezSystem2.PEntrez.MedGen.MedGen_ResultsPanel.Entrez_ResultsPanel.WrongDbSensor","shortname":"WrongDbSensor"},
{"name":"EntrezSystem2.PEntrez.MedGen.MedGen_ResultsPanel.KnowledgePanel","type":"Portlet","realname":"EntrezSystem2.PEntrez.MedGen.MedGen_ResultsPanel.Entrez_ResultsPanel.KnowledgePanel","shortname":"KnowledgePanel"},
{"name":"EntrezSystem2.PEntrez.MedGen.MedGen_ResultsPanel.HistoryDisplay","type":"Portlet","realname":"EntrezSystem2.PEntrez.MedGen.MedGen_ResultsPanel.Entrez_ResultsPanel.HistoryDisplay","shortname":"HistoryDisplay"},
{"name":"EntrezSystem2.PEntrez.MedGen.MedGen_ResultsPanel.Discovery_SearchDetails","type":"Portlet","realname":"EntrezSystem2.PEntrez.MedGen.MedGen_ResultsPanel.Entrez_ResultsPanel.Discovery_SearchDetails","shortname":"Discovery_SearchDetails"},
{"name":"EntrezSystem2.PEntrez.MedGen.MedGen_ResultsPanel.mg_GeneSensor","type":"Portlet","realname":"EntrezSystem2.PEntrez.MedGen.MedGen_ResultsPanel.mg_GeneSensor","shortname":"mg_GeneSensor"},
{"name":"EntrezSystem2.PEntrez.MedGen.MedGen_ResultsPanel.MedGen_ClinFeatureSearch","type":"Portlet","realname":"EntrezSystem2.PEntrez.MedGen.MedGen_ResultsPanel.MedGen_ClinFeatureSearch","shortname":"MedGen_ClinFeatureSearch"},
{"name":"EntrezSystem2.PEntrez.MedGen.MedGen_ResultsPanel.MedGen_RVFull","type":"Portlet","realname":"EntrezSystem2.PEntrez.MedGen.MedGen_ResultsPanel.MedGen_RVFull","shortname":"MedGen_RVFull"},
{"name":"EntrezSystem2.PEntrez.MedGen.MedGen_ResultsPanel.MedGen_SingleItemSuplCluster","type":"Cluster","realname":"EntrezSystem2.PEntrez.MedGen.MedGen_ResultsPanel.MedGen_SingleItemSuplCluster",
"children":[{"name":"EntrezSystem2.PEntrez.MedGen.MedGen_ResultsPanel.MedGen_SingleItemSuplCluster.MedGenDiscoveryDbLinks","type":"Portlet","realname":"EntrezSystem2.PEntrez.MedGen.MedGen_ResultsPanel.MedGen_SingleItemSuplCluster.MedGenDiscoveryDbLinks","shortname":"MedGenDiscoveryDbLinks"},
{"name":"EntrezSystem2.PEntrez.MedGen.MedGen_ResultsPanel.MedGen_SingleItemSuplCluster.MedGen_SingleItemSupl","type":"Portlet","realname":"EntrezSystem2.PEntrez.MedGen.MedGen_ResultsPanel.MedGen_SingleItemSuplCluster.MedGen_SingleItemSupl","shortname":"MedGen_SingleItemSupl"},
{"name":"EntrezSystem2.PEntrez.MedGen.MedGen_ResultsPanel.MedGen_SingleItemSuplCluster.MedGenReviews","type":"Portlet","realname":"EntrezSystem2.PEntrez.MedGen.MedGen_ResultsPanel.MedGen_SingleItemSuplCluster.MedGenReviews","shortname":"MedGenReviews"}]}]}]}]}]};
--></script>
<meta name='referrer' content='origin-when-cross-origin'/><link type="text/css" rel="stylesheet" href="//static.pubmed.gov/portal/portal3rc.fcgi/4223267/css/3808861/3917732/3974050/3751656/3395415/4221762/14534/4062871/4186458/4075711/12930/4033350/4128070/3861632/4013176/4212357/4064428/4186491/9685/2279/3395586.css" /><link type="text/css" rel="stylesheet" href="//static.pubmed.gov/portal/portal3rc.fcgi/4223267/css/3501913/1303451.css" media="print" /><script type="text/javascript">
var ObjectLinks=[{i:0, ename: "p$ExL", esid:"*", sname: "p$ExL", ssid:"*", dname:"p$el", dsid:"0",m:"CopyValue",p:[],f: function(src, dst) {fn_CopyValue(src, dst);}}]
var ActiveNames = {"p$ExL":1, "EntrezSystem2.PEntrez.DbConnector.Cmd":0, "EntrezSystem2.PEntrez.DbConnector.Db":0, "EntrezSystem2.PEntrez.DbConnector.IdsFromResult":0, "EntrezSystem2.PEntrez.DbConnector.LastDb":0, "EntrezSystem2.PEntrez.DbConnector.LastIdsFromResult":0, "EntrezSystem2.PEntrez.DbConnector.LastQueryKey":0, "EntrezSystem2.PEntrez.DbConnector.LastTabCmd":0, "EntrezSystem2.PEntrez.DbConnector.LinkName":0, "EntrezSystem2.PEntrez.DbConnector.LinkReadableName":0, "EntrezSystem2.PEntrez.DbConnector.LinkSrcDb":0, "EntrezSystem2.PEntrez.DbConnector.QueryKey":0, "EntrezSystem2.PEntrez.DbConnector.TabCmd":0, "EntrezSystem2.PEntrez.DbConnector.Term":0, "EntrezSystem2.PEntrez.MedGen.MedGen_PageController.PreviousPageName":0, "EntrezSystem2.PEntrez.MedGen.MedGen_ResultsPanel.HistoryDisplay.ClearHistory":0, "EntrezSystem2.PEntrez.MedGen.MedGen_ResultsPanel.HistoryDisplay.Cmd":0, "EntrezSystem2.PEntrez.MedGen.MedGen_ResultsPanel.HistoryDisplay.HistoryOn":0, "EntrezSystem2.PEntrez.MedGen.MedGen_ResultsPanel.HistoryDisplay.HistoryToggle":0, "EntrezSystem2.PEntrez.MedGen.MedGen_ResultsPanel.HistoryDisplay.Shutter":0, "EntrezSystem2.PEntrez.MedGen.MedGen_ResultsPanel.MedGen_DisplayBar.Display":0, "EntrezSystem2.PEntrez.MedGen.MedGen_ResultsPanel.MedGen_DisplayBar.FFormat":0, "EntrezSystem2.PEntrez.MedGen.MedGen_ResultsPanel.MedGen_DisplayBar.FileFormat":0, "EntrezSystem2.PEntrez.MedGen.MedGen_ResultsPanel.MedGen_DisplayBar.Format":0, "EntrezSystem2.PEntrez.MedGen.MedGen_ResultsPanel.MedGen_DisplayBar.LastFormat":0, "EntrezSystem2.PEntrez.MedGen.MedGen_ResultsPanel.MedGen_DisplayBar.LastPageSize":0, "EntrezSystem2.PEntrez.MedGen.MedGen_ResultsPanel.MedGen_DisplayBar.LastPresentation":0, "EntrezSystem2.PEntrez.MedGen.MedGen_ResultsPanel.MedGen_DisplayBar.PageSize":0, "EntrezSystem2.PEntrez.MedGen.MedGen_ResultsPanel.MedGen_DisplayBar.Presentation":0, "EntrezSystem2.PEntrez.MedGen.MedGen_ResultsPanel.MedGen_DisplayBar.PrevPageSize":0, "EntrezSystem2.PEntrez.MedGen.MedGen_ResultsPanel.MedGen_DisplayBar.PrevPresentation":0, "EntrezSystem2.PEntrez.MedGen.MedGen_ResultsPanel.MedGen_DisplayBar.PrevSort":0, "EntrezSystem2.PEntrez.MedGen.MedGen_ResultsPanel.MedGen_DisplayBar.SendTo":0, "EntrezSystem2.PEntrez.MedGen.MedGen_ResultsPanel.MedGen_DisplayBar.SendToSubmit":0, "EntrezSystem2.PEntrez.MedGen.MedGen_ResultsPanel.MedGen_DisplayBar.SetDisplay":0, "EntrezSystem2.PEntrez.MedGen.MedGen_ResultsPanel.MedGen_DisplayBar.sPresentation":0, "EntrezSystem2.PEntrez.MedGen.MedGen_ResultsPanel.MedGen_ResultsController.ResultCount":0, "EntrezSystem2.PEntrez.MedGen.MedGen_ResultsPanel.MedGen_ResultsController.RunLastQuery":0, "EntrezSystem2.PEntrez.MedGen.MedGen_ResultsPanel.MedGen_SingleItemSuplCluster.MedGenDiscoveryDbLinks.Shutter":0, "EntrezSystem2.PEntrez.MedGen.MedGen_ResultsPanel.MedGen_SingleItemSuplCluster.MedGenReviews.Shutter":0};
</script></head>
<body>
<div class="grid">
<div class="col twelve_col nomargin shadow">
<form enctype="application/x-www-form-urlencoded" name="EntrezForm" method="post" onsubmit="return false;" action="/medgen" id="EntrezForm">
<div xmlns:xi="http://www.w3.org/2001/XInclude">
<!-- no javascript message -->
<noscript>
<p class="nojs">
<strong>Warning:</strong>
The NCBI web site requires JavaScript to function.
<a href="/guide/browsers/#enablejs" title="Learn how to enable JavaScript" target="_blank">more...</a>
</p>
</noscript>
<div xmlns="http://www.w3.org/1999/xhtml" id="universal_header" xml:base="http://127.0.0.1/sites/static/header_footer/">
<section class="usa-banner">
<div class="usa-accordion">
<header class="usa-banner-header">
<div class="usa-grid usa-banner-inner">
<img src="https://www.ncbi.nlm.nih.gov/coreutils/uswds/img/favicons/favicon-57.png" alt="U.S. flag" />
<p>An official website of the United States government</p>
<button class="non-usa-accordion-button usa-banner-button" aria-expanded="false" aria-controls="gov-banner-top" type="button">
<span class="usa-banner-button-text">Here's how you know</span>
</button>
</div>
</header>
<div class="usa-banner-content usa-grid usa-accordion-content" id="gov-banner-top" aria-hidden="true">
<div class="usa-banner-guidance-gov usa-width-one-half">
<img class="usa-banner-icon usa-media_block-img" src="https://www.ncbi.nlm.nih.gov/coreutils/uswds/img/icon-dot-gov.svg" alt="Dot gov" />
<div class="usa-media_block-body">
<p>
<strong>The .gov means it's official.</strong>
<br />
Federal government websites often end in .gov or .mil. Before
sharing sensitive information, make sure you're on a federal
government site.
</p>
</div>
</div>
<div class="usa-banner-guidance-ssl usa-width-one-half">
<img class="usa-banner-icon usa-media_block-img" src="https://www.ncbi.nlm.nih.gov/coreutils/uswds/img/icon-https.svg" alt="Https" />
<div class="usa-media_block-body">
<p>
<strong>The site is secure.</strong>
<br />
The <strong>https://</strong> ensures that you are connecting to the
official website and that any information you provide is encrypted
and transmitted securely.
</p>
</div>
</div>
</div>
</div>
</section>
<div class="usa-overlay"></div>
<header class="ncbi-header" role="banner" data-section="Header">
<div class="usa-grid">
<div class="usa-width-one-whole">
<div class="ncbi-header__logo">
<a href="/" class="logo" aria-label="NCBI Logo" data-ga-action="click_image" data-ga-label="NIH NLM Logo">
<img src="https://www.ncbi.nlm.nih.gov/coreutils/nwds/img/logos/AgencyLogo.svg" alt="NIH NLM Logo" />
</a>
</div>
<div class="ncbi-header__account">
<a id="account_login" href="https://account.ncbi.nlm.nih.gov" class="usa-button header-button" style="display:none" data-ga-action="open_menu" data-ga-label="account_menu">Log in</a>
<button id="account_info" class="header-button" style="display:none" aria-controls="account_popup" type="button">
<span class="fa fa-user" aria-hidden="true">
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" width="20px" height="20px">
<g style="fill: #fff">
<ellipse cx="12" cy="8" rx="5" ry="6"></ellipse>
<path d="M21.8,19.1c-0.9-1.8-2.6-3.3-4.8-4.2c-0.6-0.2-1.3-0.2-1.8,0.1c-1,0.6-2,0.9-3.2,0.9s-2.2-0.3-3.2-0.9 C8.3,14.8,7.6,14.7,7,15c-2.2,0.9-3.9,2.4-4.8,4.2C1.5,20.5,2.6,22,4.1,22h15.8C21.4,22,22.5,20.5,21.8,19.1z"></path>
</g>
</svg>
</span>
<span class="username desktop-only" aria-hidden="true" id="uname_short"></span>
<span class="sr-only">Show account info</span>
</button>
</div>
<div class="ncbi-popup-anchor">
<div class="ncbi-popup account-popup" id="account_popup" aria-hidden="true">
<div class="ncbi-popup-head">
<button class="ncbi-close-button" data-ga-action="close_menu" data-ga-label="account_menu" type="button">
<span class="fa fa-times">
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 48 48" width="24px" height="24px">
<path d="M38 12.83l-2.83-2.83-11.17 11.17-11.17-11.17-2.83 2.83 11.17 11.17-11.17 11.17 2.83 2.83 11.17-11.17 11.17 11.17 2.83-2.83-11.17-11.17z"></path>
</svg>
</span>
<span class="usa-sr-only">Close</span></button>
<h4>Account</h4>
</div>
<div class="account-user-info">
Logged in as:<br />
<b><span class="username" id="uname_long">username</span></b>
</div>
<div class="account-links">
<ul class="usa-unstyled-list">
<li><a id="account_myncbi" href="/myncbi/" class="set-base-url" data-ga-action="click_menu_item" data-ga-label="account_myncbi">Dashboard</a></li>
<li><a id="account_pubs" href="/myncbi/collections/bibliography/" class="set-base-url" data-ga-action="click_menu_item" data-ga-label="account_pubs">Publications</a></li>
<li><a id="account_settings" href="/account/settings/" class="set-base-url" data-ga-action="click_menu_item" data-ga-label="account_settings">Account settings</a></li>
<li><a id="account_logout" href="/account/signout/" class="set-base-url" data-ga-action="click_menu_item" data-ga-label="account_logout">Log out</a></li>
</ul>
</div>
</div>
</div>
</div>
</div>
</header>
<div role="navigation" aria-label="access keys">
<a id="nws_header_accesskey_0" href="https://www.ncbi.nlm.nih.gov/guide/browsers/#ncbi_accesskeys" class="usa-sr-only" accesskey="0" tabindex="-1">Access keys</a>
<a id="nws_header_accesskey_1" href="https://www.ncbi.nlm.nih.gov" class="usa-sr-only" accesskey="1" tabindex="-1">NCBI Homepage</a>
<a id="nws_header_accesskey_2" href="/myncbi/" class="set-base-url usa-sr-only" accesskey="2" tabindex="-1">MyNCBI Homepage</a>
<a id="nws_header_accesskey_3" href="#maincontent" class="usa-sr-only" accesskey="3" tabindex="-1">Main Content</a>
<a id="nws_header_accesskey_4" href="#" class="usa-sr-only" accesskey="4" tabindex="-1">Main Navigation</a>
</div>
<section data-section="Alerts">
<div class="ncbi-alerts-placeholder"></div>
</section>
</div>
<div class="header">
<!-- logo -->
<div class="res_logo" id="gene-top">
<h1 class="res_name"><a href="/medgen">MedGen</a></h1>
<h2 class="res_tagline">National Center for Biotechnology Information</h2>
</div>
<!-- SearchBar -->
<div class="search"><div class="search_form"><label for="database" class="offscreen_noflow">Search database</label><select id="database"><optgroup label="Recent"><option value="medgen" selected="selected" data-ac_dict="medgen_disease_name">MedGen</option><option value="clinvar">ClinVar</option><option value="pubmed" data-ac_dict="pm_related_queries_2">PubMed</option><option value="biocollections" class="last">Biocollections</option></optgroup><optgroup label="All"><option value="gquery">All Databases</option><option value="assembly">Assembly</option><option value="biocollections">Biocollections</option><option value="bioproject">BioProject</option><option value="biosample">BioSample</option><option value="books">Books</option><option value="clinvar">ClinVar</option><option value="cdd">Conserved Domains</option><option value="gap">dbGaP</option><option value="dbvar">dbVar</option><option value="gene">Gene</option><option value="genome">Genome</option><option value="gds">GEO DataSets</option><option value="geoprofiles">GEO Profiles</option><option value="gtr">GTR</option><option value="ipg">Identical Protein Groups</option><option value="medgen" data-ac_dict="medgen_disease_name">MedGen</option><option value="mesh" data-ac_dict="mesh_suggestions">MeSH</option><option value="nlmcatalog">NLM Catalog</option><option value="nuccore">Nucleotide</option><option value="omim">OMIM</option><option value="pmc">PMC</option><option value="protein">Protein</option><option value="proteinclusters">Protein Clusters</option><option value="protfam">Protein Family Models</option><option value="pcassay">PubChem BioAssay</option><option value="pccompound">PubChem Compound</option><option value="pcsubstance">PubChem Substance</option><option value="pubmed" data-ac_dict="pm_related_queries_2">PubMed</option><option value="snp">SNP</option><option value="sra">SRA</option><option value="structure">Structure</option><option value="taxonomy">Taxonomy</option><option value="toolkit">ToolKit</option><option value="toolkitall">ToolKitAll</option><option value="toolkitbookgh">ToolKitBookgh</option></optgroup></select><div class="nowrap"><label for="term" class="offscreen_noflow" accesskey="/">Search term</label><div class="nowrap"><input type="text" name="term" id="term" title="Search MedGen. Use up and down arrows to choose an item from the autocomplete." value="" class="jig-ncbiclearbutton jig-ncbiautocomplete" data-jigconfig="dictionary:'medgen_disease_name',disableUrl:'NcbiSearchBarAutoComplCtrl'" autocomplete="off" data-sbconfig="ds:'no',pjs:'yes',afs:'yes'" /></div><button id="search" type="submit" class="button_search nowrap" cmd="go">Search</button></div></div><ul class="searchlinks inline_list"><set></set><li><a name="SaveSearch" title="Click to create an email alert for this search" href="/sites/myncbi/searches/save?db=medgen&amp;qk=14505" id="SaveSearch">Create alert</a></li><li><a sid="1" href="/medgen/limits">Limits</a></li><li><a href="/medgen/advanced">Advanced</a></li><li class="help"><a id="help" class="jig-ncbihelpwindow" target="ncbihelp" name="help" href="/medgen/docs/help">Help</a></li></ul></div>
</div>
<input name="EntrezSystem2.PEntrez.MedGen.MedGen_PageController.PreviousPageName" sid="1" type="hidden" value="results" />
<div id="maincontent" class="col nine_col">
<div class="content">
<div>
</div>
<div class="results_settings one_setting"><ul class="inline_list left display_settings"><li><a name="EntrezSystem2.PEntrez.MedGen.MedGen_ResultsPanel.MedGen_DisplayBar.Display" sid="0" href="#" class="jig-ncbipopper" data-jigconfig="triggerPosition : 'bottom center',destPosition : 'top center',destSelector : '#display_settings_menu_report', hasArrow : false,openEvent : 'click',closeEvent : 'click',isTriggerElementCloseClick: false,addCloseButton : false, groupName: 'entrez_pg'" id="EntrezSystem2.PEntrez.MedGen.MedGen_ResultsPanel.MedGen_DisplayBar.Display">Full Report<span href="#" class="tgt_dark"></span></a></li></ul><div id="display_settings_menu_report" class="disp_settings tabPopper"><fieldset class="format"><legend>Format</legend><ul class="column_list"><li><input type="radio" name="EntrezSystem2.PEntrez.MedGen.MedGen_ResultsPanel.MedGen_DisplayBar.sPresentation" sid="1" value="FullReport" format="" id="FullReport" checked="true" /><label for="FullReport">Full Report</label></li><li><input type="radio" name="EntrezSystem2.PEntrez.MedGen.MedGen_ResultsPanel.MedGen_DisplayBar.sPresentation" sid="2" value="FullReport" format="text" id="FullReporttext" /><label for="FullReporttext">Summary (Text)</label></li><li><input type="radio" name="EntrezSystem2.PEntrez.MedGen.MedGen_ResultsPanel.MedGen_DisplayBar.sPresentation" sid="3" value="XML" format="text" id="XMLtext" /><label for="XMLtext">Summary (XML)</label></li></ul></fieldset></div><button name="EntrezSystem2.PEntrez.MedGen.MedGen_ResultsPanel.MedGen_DisplayBar.SetDisplay" sid="1" class="button_apply ncbipopper-close-button" style="display:none">Apply</button><h4 class="content_header send_to align_right jig-ncbipopper" id="sendto" data-jigconfig="triggerPosition:'bottom center', destPosition : 'top center',destSelector : '#send_to_menu', hasArrow : false, openEvent : 'click',closeEvent : 'click', isTriggerElementCloseClick: false, addCloseButton:true, groupName: 'entrez_pg', adjustFit:'none'"><a href="#" sourceContent="send_to_menu" class="tgt_dark">Send to:</a><script type="text/javascript">
jQuery(document).ready( function () {
jQuery("#send_to_menu input[type='radio']").click( function () {
var selectedValue = jQuery(this).val().toLowerCase();
var selectedDiv = jQuery("#send_to_menu div." + selectedValue);
if(selectedDiv.is(":hidden")){
jQuery("#send_to_menu div.submenu:visible").slideUp();
selectedDiv.slideDown();
}
});
});
jQuery("#sendto").bind("ncbipopperclose", function(){
jQuery("#send_to_menu div.submenu:visible").css("display","none");
jQuery("#send_to_menu input[type='radio']:checked").attr("checked",false);
});
</script></h4><div id="send_to_menu" class="tabPopper send_to"><fieldset><legend>Choose Destination</legend><ul class="column_list"><li><input type="radio" name="EntrezSystem2.PEntrez.MedGen.MedGen_ResultsPanel.MedGen_DisplayBar.SendTo" sid="1" value="File" id="dest_File" /><label for="dest_File">File</label></li><li><input type="radio" name="EntrezSystem2.PEntrez.MedGen.MedGen_ResultsPanel.MedGen_DisplayBar.SendTo" sid="2" value="AddToClipboard" id="dest_AddToClipboard" /><label for="dest_AddToClipboard">Clipboard</label></li><li><input type="radio" name="EntrezSystem2.PEntrez.MedGen.MedGen_ResultsPanel.MedGen_DisplayBar.SendTo" sid="3" value="AddToCollections" id="dest_AddToCollections" /><label for="dest_AddToCollections">Collections</label></li></ul></fieldset><div class="submenu file" id="submenu_File" style="display: none;"><p id="submenu_File_hint" class="hidden"></p><ul><li><label for="file_format">Format</label><select id="file_format" name="EntrezSystem2.PEntrez.MedGen.MedGen_ResultsPanel.MedGen_DisplayBar.FFormat" sid="1"><option value="FullReport" format="text" selected="selected">Summary (Text)</option><option value="XML" format="text">Summary (XML)</option></select></li></ul><button name="EntrezSystem2.PEntrez.MedGen.MedGen_ResultsPanel.MedGen_DisplayBar.SendToSubmit" sid="1" class="button_apply file ncbipopper-close-button" type="submit" cmd="File">Create File</button></div><div class="submenu addtoclipboard" id="submenu_AddToClipboard" style="display: none;"><p id="submenu_AddToClipboard_hint" class="hidden"></p><button name="EntrezSystem2.PEntrez.MedGen.MedGen_ResultsPanel.MedGen_DisplayBar.SendToSubmit" sid="2" class="button_apply clipboard ncbipopper-close-button" type="submit" cmd="AddToClipboard">Add to Clipboard</button></div><div class="submenu addtocollections" id="submenu_AddToCollections" style="display: none;"><p id="submenu_AddToCollections_hint" class="hidden"></p><button name="EntrezSystem2.PEntrez.MedGen.MedGen_ResultsPanel.MedGen_DisplayBar.SendToSubmit" sid="3" class="button_apply collections ncbipopper-close-button" type="submit" cmd="AddToCollections">Add to Collections</button></div></div><div><input name="EntrezSystem2.PEntrez.MedGen.MedGen_ResultsPanel.MedGen_DisplayBar.FileFormat" sid="1" type="hidden" value="FullReport" /><input name="EntrezSystem2.PEntrez.MedGen.MedGen_ResultsPanel.MedGen_DisplayBar.LastPresentation" sid="1" type="hidden" value="FullReport" /><input name="EntrezSystem2.PEntrez.MedGen.MedGen_ResultsPanel.MedGen_DisplayBar.Presentation" sid="1" type="hidden" value="FullReport" /><input name="EntrezSystem2.PEntrez.MedGen.MedGen_ResultsPanel.MedGen_DisplayBar.PageSize" sid="1" type="hidden" value="20" /><input name="EntrezSystem2.PEntrez.MedGen.MedGen_ResultsPanel.MedGen_DisplayBar.LastPageSize" sid="1" type="hidden" value="20" /><input name="EntrezSystem2.PEntrez.MedGen.MedGen_ResultsPanel.MedGen_DisplayBar.Format" sid="1" type="hidden" value="" /><input name="EntrezSystem2.PEntrez.MedGen.MedGen_ResultsPanel.MedGen_DisplayBar.LastFormat" sid="1" type="hidden" value="" /><input name="EntrezSystem2.PEntrez.MedGen.MedGen_ResultsPanel.MedGen_DisplayBar.PrevPageSize" sid="1" type="hidden" value="20" /><input name="EntrezSystem2.PEntrez.MedGen.MedGen_ResultsPanel.MedGen_DisplayBar.PrevPresentation" sid="1" type="hidden" value="FullReport" /><input name="EntrezSystem2.PEntrez.MedGen.MedGen_ResultsPanel.MedGen_DisplayBar.PrevSort" sid="1" type="hidden" value="" /><input type="hidden" id="coll_startindex" name="CollectionStartIndex" value="1" /></div></div>
<div class="">
<div><span id="result_sel" class="nowrap"></span><input name="EntrezSystem2.PEntrez.MedGen.MedGen_ResultsPanel.MedGen_ResultsController.ResultCount" sid="1" type="hidden" id="resultcount" value="1" /><input name="EntrezSystem2.PEntrez.MedGen.MedGen_ResultsPanel.MedGen_ResultsController.RunLastQuery" sid="1" type="hidden" /></div>
</div>
<div id="messagearea" class="empty">
</div>
<div><div class="rprt full-rprt"><div class="portlet" style="border-top-style: none; margin-top: 0px; padding-top: 0px; margin-bottom: 0px; padding-left: 0.2em;">
<!--
UID=116041
ConceptID=C0238052
-->
<!--imgCountBooks = 2--><div class="ncbi_carousel" data-ncbicarousel-config="imageWidth:'100px',numItemsVisible:2,toggler:false"><div class="nc_header"><span class="img_strip_title">Images (2)</span></div><div class="nc_content"><div class="nc_item"><a class="figpopup"><img alt="Image from GeneReviews" src="/books/NBK1409/bin/ctx-Image001.gif" src-large="/books/NBK1409/bin/ctx-Image001.jpg" /></a><br /><a href="/books/NBK1409/figure/ctx.F1/" title="GeneReviews" target="_blank">details</a></div><div class="nc_item"><a class="figpopup"><img alt="Image from GeneReviews" src="/books/NBK1409/bin/ctx-Image002.gif" src-large="/books/NBK1409/bin/ctx-Image002.jpg" /></a><br /><a href="/books/NBK1409/figure/ctx.F2/" title="GeneReviews" target="_blank">details</a></div></div></div><h1 class="medgenTitle"><div class="MedGenTitleText">Cholestanol storage disease<span class="h1sub">(CTX)</span></div></h1><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>116041</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information."><span class="highlight" style="background-color:">C0238052</span></a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div><table class="medgenTable"><tbody><tr><td>Synonyms:</td>
<td>CEREBRAL CHOLESTERINOSIS; Cerebrotendinous Xanthomatosis; CTX; CTX: Cerebrotendinous xanthomatosis</td></tr>
<tr><td><span class="bold">SNOMED CT: </span></td>
<td>Cholestanol storage disease (63246000); Cerebrotendinous xanthomatosis (63246000); Cerebral cholesterinosis (63246000); van Bogaert-Scherer-Epstein syndrome (63246000); CTX - Cerebrotendinous xanthomatosis (63246000); Cerebrotendinous cholesterinosis (63246000); Cholestanolosis (63246000); Van Bogaert-Scherer-Epstein disease (63246000)</td></tr>
<tr><td>Modes of inheritance:</td>
<td>
<div class="divPopper rprt" id="moi_141025"><div><strong>Autosomal recessive inheritance</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>141025</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C0441748</a></dd><dt><span class="dotprefix"></span></dt><dd>Intellectual Product</dd></dl></div></div></div>
<div class="spaceAbove">Source: Orphanet</div>
<div class="spaceAbove">A mode of inheritance that is observed for traits related to a gene encoded on one of the autosomes (i.e., the human chromosomes 1-22) in which a trait manifests in individuals with two pathogenic alleles, either homozygotes (two copies of the same mutant allele) or compound heterozygotes (whereby each copy of a gene has a distinct mutant allele).</div></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#moi_141025" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Autosomal recessive inheritance</a><span> (Orphanet)</span></div></td></tr>
<tr><td colspan="2" class="small"> </td></tr><tr><td><a class="help jig-ncbi-popper" data-jig="ncbipopper" href="#target-gene-loc">Gene (location):<img class="pulldown" src="//static.pubmed.gov/portal/portal3rc.fcgi/4223267/img/4204968" /></a><div class="display-none" id="target-gene-loc">
Gene(s) directly associated with<br />
this condition or phenotype.</div></td>
<td><a target="_blank" title="CYP27A1 - ID: 1593 - NCBI Gene" href="/gene/1593" class="medgenPMinfo">CYP27A1</a> (2q35)</td></tr>
<tr><td colspan="2" class="small"> </td></tr><tr><td>Monarch Initiative:</td>
<td><a href="https://monarchinitiative.org/disease/MONDO:0008948" target="_blank">MONDO:0008948</a></td></tr>
<tr><td>OMIM<span class="superscript">®</span>:</td>
<td><a href="https://omim.org/entry/213700" target="_blank">213700</a></td></tr>
<tr><td>Orphanet:</td>
<td><a target="_blank" title="Orphanet: The portal for rare diseases and orphan drugs" href="http://www.orpha.net/consor/cgi-bin/OC_Exp.php?lng=EN&amp;Expert=909">ORPHA909</a></td></tr></tbody></table></div><div class="rprt-body jig-ncbiinpagenav" data-jigconfig="smoothScroll: false, gotoTopLink: true, gotoTopLinkText: '', gotoTopLinkAttrs: {'title': 'Go to the top of the page'},allHeadingLevels: ['h1'], topOfPageTOC: true, tocId: 'my-toc'"><div id="rprt-tabs-1" class="rprt-tab"><div id="tb-termsProp-1"><div class="leftCol mgCol"><div>
<div class="portlet mgSection" id="ID_101">
<div class="portlet_head mgSectionHead ui-widget-header"><h1 class="nl" id="Disease_characteristics">Disease characteristics</h1><a sid="101" href="#" class="portlet_shutter" title="Show/hide content"></a></div>
<div class="portlet_content ln"><div class="excerpt">Excerpted from the <i>GeneReview: </i><a href="/books/NBK1409" target="_blank">Cerebrotendinous Xanthomatosis</a></div><div>Cerebrotendinous xanthomatosis (CTX) is a lipid storage disease characterized by infantile-onset diarrhea, childhood-onset cataract, adolescent- to young adult-onset tendon xanthomas, and adult-onset progressive neurologic dysfunction (dementia, psychiatric disturbances, pyramidal and/or cerebellar signs, dystonia, atypical parkinsonism, peripheral neuropathy, and seizures). Chronic diarrhea from infancy and/or neonatal cholestasis may be the earliest clinical manifestation. In approximately 75% of affected individuals, cataracts are the first finding, often appearing in the first decade of life. Xanthomas appear in the second or third decade; they occur on the Achilles tendon, the extensor tendons of the elbow and hand, the patellar tendon, and the neck tendons. Xanthomas have been reported in the lung, bones, and central nervous system. Some individuals show cognitive impairment from early infancy, whereas the majority have normal or only slightly impaired intellectual function until puberty; dementia with slow deterioration in intellectual abilities occurs in the third decade in more than 50% of individuals. Neuropsychiatric symptoms such as behavioral changes, hallucinations, agitation, aggression, depression, and suicide attempts may be prominent. Pyramidal signs (i.e., spasticity) and/or cerebellar signs almost invariably become evident between ages 20 and 30 years. The biochemical abnormalities that distinguish CTX from other conditions with xanthomas include high plasma and tissue cholestanol concentration, normal-to-low plasma cholesterol concentration, decreased chenodeoxycholic acid (CDCA), increased concentration of bile alcohols and their glyconjugates, and increased concentrations of cholestanol and apolipoprotein B in cerebrospinal fluid. [from <a title="GeneReviews" href="https://www.ncbi.nlm.nih.gov/books/NBK1116" class="defSource" target="_blank">GeneReviews</a>]</div><div class="spaceAbove"><strong>Full text of <i>GeneReview</i> (by section):</strong><br /><a class="medgenPMinfo" href="/books/NBK1409#ctx.Summary" target="NBK1409">Summary</a>  |  <a class="medgenPMinfo" href="/books/NBK1409#ctx.Diagnosis" target="NBK1409">Diagnosis</a>  |  <a class="medgenPMinfo" href="/books/NBK1409#ctx.Clinical_Characteristics" target="NBK1409">Clinical Characteristics</a>  |  <a class="medgenPMinfo" href="/books/NBK1409#ctx.Genetically_Related_Allelic_Disorder" target="NBK1409">Genetically Related (Allelic) Disorders</a>  |  <a class="medgenPMinfo" href="/books/NBK1409#ctx.Differential_Diagnosis" target="NBK1409">Differential Diagnosis</a>  |  <a class="medgenPMinfo" href="/books/NBK1409#ctx.Management" target="NBK1409">Management</a>  |  <a class="medgenPMinfo" href="/books/NBK1409#ctx.Genetic_Counseling" target="NBK1409">Genetic Counseling</a>  |  <a class="medgenPMinfo" href="/books/NBK1409#ctx.Resources" target="NBK1409">Resources</a>  |  <a class="medgenPMinfo" href="/books/NBK1409#ctx.Molecular_Genetics" target="NBK1409">Molecular Genetics</a>  |  <a class="medgenPMinfo" href="/books/NBK1409#ctx.Chapter_Notes" target="NBK1409">Chapter Notes</a>  |  <a class="medgenPMinfo" href="/books/NBK1409#ctx.References" target="NBK1409">References</a></div><div class="spaceAbove"><strong>Authors:</strong><br />
Antonio Federico  |  Gian Nicola Gallus   <a href="/books/NBK1409" target="NBK1409" title="NCBI Bookshelf: Cerebrotendinous Xanthomatosis">view full author information</a></div></div>
</div>
<div class="portlet mgSection" id="ID_117">
<div class="portlet_head mgSectionHead ui-widget-header"><h1 class="nl" id="Additional_descriptions">Additional descriptions</h1><a sid="117" href="#" class="portlet_shutter" title="Show/hide content"></a></div>
<div class="portlet_content ln"><div class="mgSection"><strong>From OMIM</strong><br />Cerebrotendinous xanthomatosis (CTX) is a rare autosomal recessive lipid-storage disease characterized clinically by progressive neurologic dysfunction (cerebellar ataxia beginning after puberty, systemic spinal cord involvement and a pseudobulbar phase leading to death), premature atherosclerosis, and cataracts. Large deposits of cholesterol and cholestanol are found in virtually every tissue, particularly the Achilles tendons, brain, and lungs. Cholestanol, the 5-alpha-dihydro derivative of cholesterol, is enriched relative to cholesterol in all tissues. The diagnosis can be made by demonstrating cholestanol in abnormal amounts in the serum and tendon of persons suspected of being affected. Plasma cholesterol concentrations are low normal in CTX patients.&#13;
Dotti et al. (2001) examined the ophthalmologic findings of 13 CTX patients. In addition to cataracts, which were found in all cases, optic disc pallor was identified in 6 of the patients. Premature retinal senescence was also observed.&#13;
In a tabular presentation, Moghadasian et al. (2002) compared and contrasted CTX with 2 other lipid disorders with certain similarities and clinical course: familial hypercholesterolemia (see 143890) and sitosterolemia (see 210250).  <a target="_blank" href="http://www.omim.org/entry/213700">http://www.omim.org/entry/213700</a></div><div class="mgSection"><strong>From MedlinePlus Genetics</strong><br />Cerebrotendinous xanthomatosis is a disorder characterized by abnormal storage of fats (lipids) in many areas of the body. People with this disorder cannot break down certain lipids effectively, specifically different forms of cholesterol, so these fats accumulate in the body in the form of fatty yellow nodules called xanthomas. These xanthomas are most commonly found in the brain and in connective tissue called tendons that attach muscle to bone, which is reflected in the condition name (cerebro- meaning brain and -tendinous referring to tendons).<br /><br />People with cerebrotendinous xanthomatosis often develop neurological problems in early adulthood that are thought to be caused by an abnormal accumulation of fats and an increasing number of xanthomas in the brain. These neurological problems include recurrent seizures (epilepsy), movement disorders, impaired speech (dysarthria), loss of sensation in the arms and legs (peripheral neuropathy), decline in intellectual function (dementia), hallucinations, and depression. Xanthomas can accumulate in the fatty substance that insulates and protects nerves (myelin), causing the destruction of myelin and disrupting nerve signaling in the brain. Degeneration (atrophy) of brain tissue caused by excess lipid deposits also contributes to the neurological problems.<br /><br />Xanthomas in the tendons begin to form in early adulthood. The most common areas for xanthomas to develop are tendons in the hands, elbows, knees, neck, and in the Achilles tendon, which connects the heel of the foot to the calf muscles in the leg. Tendon xanthomas may cause discomfort and interfere with tendon flexibility. While many affected people develop tendon xanthomas, these nodules may not be easily visible underneath the skin.<br /><br />Other features of cerebrotendinous xanthomatosis include clouding of the lenses of the eyes (cataracts) and chronic diarrhea in childhood; a reduced ability to produce and release a digestive fluid called bile (cholestasis), which can lead to a yellowing of the skin or whites of the eyes (jaundice); and progressively brittle bones that are prone to fracture (osteoporosis). People with cerebrotendinous xanthomatosis are also at an increased risk of developing cardiovascular disease or respiratory failure because of lipid accumulation in the heart or lungs, respectively. If untreated, the signs and symptoms related to cerebrotendinous xanthomatosis worsen over time; however, this condition varies greatly among those who are affected.  <a target="_blank" href="https://medlineplus.gov/genetics/condition/cerebrotendinous-xanthomatosis">https://medlineplus.gov/genetics/condition/cerebrotendinous-xanthomatosis</a></div></div>
</div>
<div class="portlet mgSection" id="ID_102">
<div class="portlet_head mgSectionHead ui-widget-header"><h1 class="nl" id="Clinical_features">Clinical features</h1><a sid="102" href="#" class="portlet_shutter" title="Show/hide content"></a></div>
<div class="portlet_content ln clinfeat"><strong>From HPO</strong><br />
<div class="divPopper rprt" id="clin_1052809"><div><strong>Elevated urinary bile alcohol level</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>1052809</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier assigned by MedGen (starting with CN) for terms&#10;that cannot be identified in NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">CN378359</a></dd><dt><span class="dotprefix"></span></dt><dd>Finding</dd></dl></div></div></div>
<div class="spaceAbove">The amount of bile alcohol in the urine, normalized for urine concentration, is above the upper limit of normal.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/1052809">Feature record</a> | <a href="/medgen?term=%22Elevated%20urinary%20bile%20alcohol%20level%22%5BClinical%20Features%5D%20OR%201052809%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_68672"><div><strong>Ankle clonus</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>68672</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C0238651</a></dd><dt><span class="dotprefix"></span></dt><dd>Finding</dd></dl></div></div></div>
<div class="spaceAbove">Clonus is an involuntary tendon reflex that causes repeated flexion and extension of the foot. Ankle clonus is tested by rapidly flexing the foot upward.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/68672">Feature record</a> | <a href="/medgen?term=%22Ankle%20clonus%22%5BClinical%20Features%5D%20OR%2068672%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_324478"><div><strong>Lower limb muscle weakness</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>324478</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C1836296</a></dd><dt><span class="dotprefix"></span></dt><dd>Finding</dd></dl></div></div></div>
<div class="spaceAbove">Weakness of the muscles of the legs.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/324478">Feature record</a> | <a href="/medgen?term=%22Lower%20limb%20muscle%20weakness%22%5BClinical%20Features%5D%20OR%20324478%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_1929"><div><strong>Angina pectoris</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>1929</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C0002962</a></dd><dt><span class="dotprefix"></span></dt><dd>Sign or Symptom</dd></dl></div></div></div>
<div class="spaceAbove">Paroxysmal chest pain that occurs with exertion or stress and is related to myocardial ischemia.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/1929">Feature record</a> | <a href="/medgen?term=%22Angina%20pectoris%22%5BClinical%20Features%5D%20OR%201929%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_10150"><div><strong>Myocardial infarction</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>10150</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C0027051</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Necrosis of the myocardium caused by an obstruction of the blood supply to the heart and often associated with chest pain, shortness of breath, palpitations, and anxiety as well as characteristic EKG findings and elevation of serum markers including creatine kinase-MB fraction and troponin.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/10150">Feature record</a> | <a href="/medgen?term=%22Myocardial%20infarction%22%5BClinical%20Features%5D%20OR%2010150%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_3039"><div><strong>Cholelithiasis</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>3039</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C0008350</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Hard, pebble-like deposits that form within the gallbladder.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/3039">Feature record</a> | <a href="/medgen?term=%22Cholelithiasis%22%5BClinical%20Features%5D%20OR%203039%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_8360"><div><strong>Diarrhea</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>8360</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C0011991</a></dd><dt><span class="dotprefix"></span></dt><dd>Sign or Symptom</dd></dl></div></div></div>
<div class="spaceAbove">Abnormally increased frequency (usually defined as three or more) loose or watery bowel movements a day.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/8360">Feature record</a> | <a href="/medgen?term=%22Diarrhea%22%5BClinical%20Features%5D%20OR%208360%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_849"><div><strong>Cerebellar ataxia</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>849</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C0007758</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Cerebellar ataxia refers to ataxia due to dysfunction of the cerebellum. This causes a variety of elementary neurological deficits including asynergy (lack of coordination between muscles, limbs and joints), dysmetria (lack of ability to judge distances that can lead to under- or overshoot in grasping movements), and dysdiadochokinesia (inability to perform rapid movements requiring antagonizing muscle groups to be switched on and off repeatedly).</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/849">Feature record</a> | <a href="/medgen?term=%22Cerebellar%20ataxia%22%5BClinical%20Features%5D%20OR%20849%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_3715"><div><strong>Delusion</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>3715</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C0011253</a></dd><dt><span class="dotprefix"></span></dt><dd>Mental or Behavioral Dysfunction</dd></dl></div></div></div>
<div class="spaceAbove">A delusion is a fixed false belief held despite evidence to the contrary. The term delusion broadly encompasses all false judgments that possess the following external characteristics to a significant, albeit unspecified, extent</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/3715">Feature record</a> | <a href="/medgen?term=%22Delusion%22%5BClinical%20Features%5D%20OR%203715%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_6709"><div><strong>Hallucinations</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>6709</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C0018524</a></dd><dt><span class="dotprefix"></span></dt><dd>Mental or Behavioral Dysfunction</dd></dl></div></div></div>
<div class="spaceAbove">Perceptions in a conscious and awake state that, in the absence of external stimuli, have qualities of real perception. These perceptions are vivid, substantial, and located in external objective space.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/6709">Feature record</a> | <a href="/medgen?term=%22Hallucinations%22%5BClinical%20Features%5D%20OR%206709%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_7753"><div><strong>Spasticity</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>7753</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C0026838</a></dd><dt><span class="dotprefix"></span></dt><dd>Sign or Symptom</dd></dl></div></div></div>
<div class="spaceAbove">A motor disorder characterized by a velocity-dependent increase in tonic stretch reflexes with increased muscle tone, exaggerated (hyperexcitable) tendon reflexes.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/7753">Feature record</a> | <a href="/medgen?term=%22Spasticity%22%5BClinical%20Features%5D%20OR%207753%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_18386"><div><strong>Peripheral neuropathy</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>18386</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C0031117</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Peripheral neuropathy is a general term for any disorder of the peripheral nervous system. The main clinical features used to classify peripheral neuropathy are distribution, type (mainly demyelinating versus mainly axonal), duration, and course.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/18386">Feature record</a> | <a href="/medgen?term=%22Peripheral%20neuropathy%22%5BClinical%20Features%5D%20OR%2018386%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_10989"><div><strong>Pseudobulbar paralysis</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>10989</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C0033790</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Bilateral impairment of the function of the cranial nerves 9-12, which control musculature involved in eating, swallowing, and speech. Pseudobulbar paralysis is characterized clinically by dysarthria, dysphonia, and dysphagia with bifacial paralysis, and may be accompanied by Pseudobulbar behavioral symptoms such as enforced crying and laughing.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/10989">Feature record</a> | <a href="/medgen?term=%22Pseudobulbar%20paralysis%22%5BClinical%20Features%5D%20OR%2010989%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_19708"><div><strong>Babinski sign</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>19708</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C0034935</a></dd><dt><span class="dotprefix"></span></dt><dd>Finding</dd></dl></div></div></div>
<div class="spaceAbove">Upturning of the big toe (and sometimes fanning of the other toes) in response to stimulation of the sole of the foot. If the Babinski sign is present it can indicate damage to the corticospinal tract.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/19708">Feature record</a> | <a href="/medgen?term=%22Babinski%20sign%22%5BClinical%20Features%5D%20OR%2019708%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_20693"><div><strong>Seizure</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>20693</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C0036572</a></dd><dt><span class="dotprefix"></span></dt><dd>Sign or Symptom</dd></dl></div></div></div>
<div class="spaceAbove">A seizure is an intermittent abnormality of nervous system physiology characterized by a transient occurrence of signs and/or symptoms due to abnormal excessive or synchronous neuronal activity in the brain.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/20693">Feature record</a> | <a href="/medgen?term=%22Seizure%22%5BClinical%20Features%5D%20OR%2020693%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_68582"><div><strong>Abnormal pyramidal sign</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>68582</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C0234132</a></dd><dt><span class="dotprefix"></span></dt><dd>Sign or Symptom</dd></dl></div></div></div>
<div class="spaceAbove">Functional neurological abnormalities related to dysfunction of the pyramidal tract.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/68582">Feature record</a> | <a href="/medgen?term=%22Abnormal%20pyramidal%20sign%22%5BClinical%20Features%5D%20OR%2068582%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_116012"><div><strong>Cerebral atrophy</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>116012</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C0235946</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Atrophy (wasting, decrease in size of cells or tissue) affecting the cerebrum.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/116012">Feature record</a> | <a href="/medgen?term=%22Cerebral%20atrophy%22%5BClinical%20Features%5D%20OR%20116012%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_99229"><div><strong>Dementia</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>99229</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C0497327</a></dd><dt><span class="dotprefix"></span></dt><dd>Mental or Behavioral Dysfunction</dd></dl></div></div></div>
<div class="spaceAbove">A loss of global cognitive ability of sufficient amount to interfere with normal social or occupational function. Dementia represents a loss of previously present cognitive abilities, generally in adults, and can affect memory, thinking, language, judgment, and behavior.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/99229">Feature record</a> | <a href="/medgen?term=%22Dementia%22%5BClinical%20Features%5D%20OR%2099229%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_107895"><div><strong>Gait disturbance</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>107895</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C0575081</a></dd><dt><span class="dotprefix"></span></dt><dd>Finding</dd></dl></div></div></div>
<div class="spaceAbove">The term gait disturbance can refer to any disruption of the ability to walk.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/107895">Feature record</a> | <a href="/medgen?term=%22Gait%20disturbance%22%5BClinical%20Features%5D%20OR%20107895%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_196624"><div><strong>Cerebellar atrophy</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>196624</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C0740279</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Cerebellar atrophy is defined as a cerebellum with initially normal structures, in a posterior fossa with normal size, which displays enlarged fissures (interfolial spaces) in comparison to the foliae secondary to loss of tissue. Cerebellar atrophy implies irreversible loss of tissue and result from an ongoing progressive disease until a final stage is reached or a single injury, e.g. an intoxication or infectious event.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/196624">Feature record</a> | <a href="/medgen?term=%22Cerebellar%20atrophy%22%5BClinical%20Features%5D%20OR%20196624%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_435926"><div><strong>Abnormal periventricular white matter morphology</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>435926</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C2673431</a></dd><dt><span class="dotprefix"></span></dt><dd>Finding</dd></dl></div></div></div>
<div class="spaceAbove">A structural abnormality of the myelinated axons (white matter) located near the cerebral ventricles.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/435926">Feature record</a> | <a href="/medgen?term=%22Abnormal%20periventricular%20white%20matter%20morphology%22%5BClinical%20Features%5D%20OR%20435926%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_811461"><div><strong>Intellectual disability</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>811461</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C3714756</a></dd><dt><span class="dotprefix"></span></dt><dd>Mental or Behavioral Dysfunction</dd></dl></div></div></div>
<div class="spaceAbove">Intellectual disability, previously referred to as mental retardation, is characterized by subnormal intellectual functioning that occurs during the developmental period. It is defined by an IQ score below 70.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/811461">Feature record</a> | <a href="/medgen?term=%22Intellectual%20disability%22%5BClinical%20Features%5D%20OR%20811461%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_866862"><div><strong>EEG with generalized slow activity</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>866862</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C4021217</a></dd><dt><span class="dotprefix"></span></dt><dd>Finding</dd></dl></div></div></div>
<div class="spaceAbove">Diffuse slowing of cerebral electrical activity recorded along the scalp by electroencephalography (EEG).</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/866862">Feature record</a> | <a href="/medgen?term=%22EEG%20with%20generalized%20slow%20activity%22%5BClinical%20Features%5D%20OR%20866862%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_867758"><div><strong>Abnormal dentate nucleus morphology</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>867758</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C4022148</a></dd><dt><span class="dotprefix"></span></dt><dd>Anatomical Abnormality</dd></dl></div></div></div>
<div class="spaceAbove">An abnormality of the dentate nucleus.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/867758">Feature record</a> | <a href="/medgen?term=%22Abnormal%20dentate%20nucleus%20morphology%22%5BClinical%20Features%5D%20OR%20867758%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_867773"><div><strong>Delayed somatosensory central conduction time</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>867773</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C4022163</a></dd><dt><span class="dotprefix"></span></dt><dd>Finding</dd></dl></div></div></div>
<div class="spaceAbove">An abnormal increase (delay) in the somatosensory central conduction time (CCT), which can be measured from the peak of N13 to the peak of N20 (peak CCT) or from the onset of N11 to the onset of N20 (onset CCT).</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/867773">Feature record</a> | <a href="/medgen?term=%22Delayed%20somatosensory%20central%20conduction%20time%22%5BClinical%20Features%5D%20OR%20867773%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_1863532"><div><strong>Elevated CSF cholestanol concentration</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>1863532</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C5937034</a></dd><dt><span class="dotprefix"></span></dt><dd>Finding</dd></dl></div></div></div>
<div class="spaceAbove">The concentration of cholestanol in the cerebrospinal fluid (CSF) is above the upper limit of normal. Cholestanol is the 5-alpha-dihydro derivative of cholesterol.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/1863532">Feature record</a> | <a href="/medgen?term=%22Elevated%20CSF%20cholestanol%20concentration%22%5BClinical%20Features%5D%20OR%201863532%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_14535"><div><strong>Osteoporosis</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>14535</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C0029456</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Osteoporosis is a systemic skeletal disease characterized by low bone density and microarchitectural deterioration of bone tissue with a consequent increase in bone fragility. According to the WHO criteria, osteoporosis is defined as a BMD that lies 2.5 standard deviations or more below the average value for young healthy adults (a T-score below -2.5 SD).</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/14535">Feature record</a> | <a href="/medgen?term=%22Osteoporosis%22%5BClinical%20Features%5D%20OR%2014535%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_450999"><div><strong>Tendon xanthomatosis</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>450999</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C0221253</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">The presence of xanthomas (intra-and extra-cellular accumulations of cholesterol) extensor tendons (typically over knuckles, Achilles tendon, knee, and elbows).</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/450999">Feature record</a> | <a href="/medgen?term=%22Tendon%20xanthomatosis%22%5BClinical%20Features%5D%20OR%20450999%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_871138"><div><strong>EMG: axonal abnormality</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>871138</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C4025609</a></dd><dt><span class="dotprefix"></span></dt><dd>Pathologic Function</dd></dl></div></div></div>
<div class="spaceAbove">Electromyographic (EMG) findings characteristic of axonal neuropathy, with normal or slightly decreased nerve conduction velocities, normal or slightly prolonged distal latencies, but significantly reduced motor potentials and sensory amplitudes. There may be spontaneous activity upon needle EMG studies, such as increased insertional activity, positive sharp waves, and fibrillation potentials.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/871138">Feature record</a> | <a href="/medgen?term=%22EMG%3A%20axonal%20abnormality%22%5BClinical%20Features%5D%20OR%20871138%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_11197"><div><strong>Respiratory insufficiency</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>11197</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C0035229</a></dd><dt><span class="dotprefix"></span></dt><dd>Pathologic Function</dd></dl></div></div></div>
<div class="spaceAbove">Impairment of gas exchange within the lungs secondary to a disease process, neoplasm, or trauma, possibly resulting in hypoxia, hypercarbia, or both, but not requiring intubation or mechanical ventilation. Patients are normally managed with pharmaceutical therapy, supplemental oxygen, or both.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/11197">Feature record</a> | <a href="/medgen?term=%22Respiratory%20insufficiency%22%5BClinical%20Features%5D%20OR%2011197%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_871179"><div><strong>Abnormal circulating cholesterol concentration</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>871179</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C4025656</a></dd><dt><span class="dotprefix"></span></dt><dd>Finding</dd></dl></div></div></div>
<div class="spaceAbove">Any deviation from the normal concentration of cholesterol in the blood circulation.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/871179">Feature record</a> | <a href="/medgen?term=%22Abnormal%20circulating%20cholesterol%20concentration%22%5BClinical%20Features%5D%20OR%20871179%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_1863906"><div><strong>Elevated circulating bile alcohol concentration</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>1863906</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C5937542</a></dd><dt><span class="dotprefix"></span></dt><dd>Finding</dd></dl></div></div></div>
<div class="spaceAbove">The concentration of bile alcohols in the blood circulation is above the upper limit of normal.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/1863906">Feature record</a> | <a href="/medgen?term=%22Elevated%20circulating%20bile%20alcohol%20concentration%22%5BClinical%20Features%5D%20OR%201863906%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_21939"><div><strong>Xanthomatosis</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>21939</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C0043325</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">The presence of multiple xanthomas (xanthomata) in the skin. Xanthomas are yellowish, firm, lipid-laden nodules in the skin.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/21939">Feature record</a> | <a href="/medgen?term=%22Xanthomatosis%22%5BClinical%20Features%5D%20OR%2021939%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_56357"><div><strong>Xanthelasma</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>56357</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C0155210</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">The presence of xanthomata in the skin of the eyelid.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/56357">Feature record</a> | <a href="/medgen?term=%22Xanthelasma%22%5BClinical%20Features%5D%20OR%2056357%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_86213"><div><strong>Tuberous xanthoma</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>86213</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C0302164</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">A type of xanthoma characterized by a nodular form. Tuberous xanthomas are firm subcutaneous nodules,whereby the overlying skin can have red or red-yellow color changes.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/86213">Feature record</a> | <a href="/medgen?term=%22Tuberous%20xanthoma%22%5BClinical%20Features%5D%20OR%2086213%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_39462"><div><strong>Cataract</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>39462</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C0086543</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">A cataract is an opacity or clouding that develops in the crystalline lens of the eye or in its capsule.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/39462">Feature record</a> | <a href="/medgen?term=%22Cataract%22%5BClinical%20Features%5D%20OR%2039462%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_108218"><div><strong>Optic disc pallor</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>108218</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C0554970</a></dd><dt><span class="dotprefix"></span></dt><dd>Finding</dd></dl></div></div></div>
<div class="spaceAbove">A pale yellow discoloration of the optic disc (the area of the optic nerve head in the retina). The optic disc normally has a pinkish hue with a central yellowish depression.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/108218">Feature record</a> | <a href="/medgen?term=%22Optic%20disc%20pallor%22%5BClinical%20Features%5D%20OR%20108218%5Buid%5D">Search on this feature</a></div></div><div class="TreeLite" data-jigconfig="closed: 1"><div class="concept-def"><a class="small" href="#" onclick="jQuery(&quot;.TreeLite&quot;,&quot;#ID_102&quot;).TreeLite().openAll(); return false;">Show all</a><a class="small" href="#" onclick="jQuery(&quot;.TreeLite&quot;,&quot;#ID_102&quot;).TreeLite().closeAll(); return false;">Hide all</a></div><ul><li><span class="TLline">Abnormality of limbs</span><ul><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_68672" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Ankle clonus</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_324478" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Lower limb muscle weakness</a></span></li></ul></li><li><span class="TLline">Abnormality of metabolism/homeostasis</span><ul><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_871179" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Abnormal circulating cholesterol concentration</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_1863906" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Elevated circulating bile alcohol concentration</a></span></li></ul></li><li><span class="TLline">Abnormality of the cardiovascular system</span><ul><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_1929" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Angina pectoris</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_10150" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Myocardial infarction</a></span></li></ul></li><li><span class="TLline">Abnormality of the digestive system</span><ul><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_3039" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Cholelithiasis</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_8360" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Diarrhea</a></span></li></ul></li><li><span class="TLline">Abnormality of the eye</span><ul><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_39462" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Cataract</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_108218" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Optic disc pallor</a></span></li></ul></li><li><span class="TLline">Abnormality of the genitourinary system</span><ul><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_1052809" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Elevated urinary bile alcohol level</a></span></li></ul></li><li><span class="TLline">Abnormality of the integument</span><ul><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_86213" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Tuberous xanthoma</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_56357" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Xanthelasma</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_21939" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Xanthomatosis</a></span></li></ul></li><li><span class="TLline">Abnormality of the musculoskeletal system</span><ul><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_871138" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">EMG: axonal abnormality</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_14535" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Osteoporosis</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_450999" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Tendon xanthomatosis</a></span></li></ul></li><li><span class="TLline">Abnormality of the nervous system</span><ul><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_867758" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Abnormal dentate nucleus morphology</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_435926" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Abnormal periventricular white matter morphology</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_68582" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Abnormal pyramidal sign</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_19708" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Babinski sign</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_849" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Cerebellar ataxia</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_196624" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Cerebellar atrophy</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_116012" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Cerebral atrophy</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_867773" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Delayed somatosensory central conduction time</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_3715" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Delusion</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_99229" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Dementia</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_866862" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">EEG with generalized slow activity</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_1863532" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Elevated CSF cholestanol concentration</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_107895" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Gait disturbance</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_6709" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Hallucinations</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_811461" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Intellectual disability</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_18386" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Peripheral neuropathy</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_10989" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Pseudobulbar paralysis</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_20693" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Seizure</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_7753" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Spasticity</a></span></li></ul></li><li><span class="TLline">Abnormality of the respiratory system</span><ul><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_11197" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Respiratory insufficiency</a></span></li></ul></li></ul></div></div>
</div>
<div class="portlet mgSection" id="ID_118">
<div class="portlet_head mgSectionHead ui-widget-header"><h1 class="nl" id="Term_Hierarchy">Term Hierarchy</h1><a sid="118" href="#" class="portlet_shutter" title="Show/hide content"></a></div>
<div class="portlet_content ln HierarchyGTR"><div class="jig-ncbitabs"><ul><li><a href="#tabGTR">GTR</a></li><li><a href="#tabMGEN">MeSH</a></li><li><a href="#tabORDO">Orphanet</a></li></ul><div id="tabGTR"><div class="search_result"><div class="rprts"><div class="chiclet_legend"><span class="chiclet_list" style="position:static;"><span title="Clinical test" class="chiclet Ccolor round">C</span><span>Clinical test,  </span><span title="Research test" class="chiclet Rcolor round">R</span><span>Research test,  </span><span title="OMIM" class="chiclet Ocolor ">O</span><span>OMIM,  </span><span title="GeneReview" class="chiclet Gcolor">G</span><span><em>GeneReviews</em>,  </span><span title="ClinVar" class="chiclet Vcolor">V</span><span>ClinVar  </span></span></div><div id="hierarchy" class="margin_t1"><div class="ds_tree"><ul><li class="matched_ds"><span class="chiclet_list"><span class="chiclet Ccolor round" title="Clinical test"><a target="_blank" href="/gtr/tests/?term=C0238052[DISCUI]&amp;test_type=Clinical" ref="ncbi_uid=116041">C</a></span><span class="chiclet unavailable round" title="Research Tests">R</span><span class="chiclet Ocolor" title="OMIM"><a ref="ncbi_uid=116041" target="_blank" href="/omim/213700">O</a></span><span class="chiclet Gcolor" title="GeneReviews"><a target="_blank" href="/books/NBK1409/" ref="ncbi_uid=116041">G</a></span><span class="chiclet Vcolor" title="ClinVar"><a target="_blank" href="/clinvar?LinkName=medgen_clinvar&amp;from_uid=116041" ref="ncbi_uid=116041">V</a></span></span><span class="TLline">Cholestanol storage disease</span></li></ul></div></div></div></div></div><div id="tabMGEN"><div class="ds_tree"><ul><li><span class="TLline"><a href="/medgen/1842756" ref="tree=MeSH" title="MedGen record for Autosomal recessive metabolic cerebellar ataxia">Autosomal recessive metabolic cerebellar ataxia</a></span><ul><li><span class="matched_ds">Cholestanol storage disease</span></li></ul></li></ul></div></div><div id="tabORDO">Follow <a target="_blank" href="http://www.orpha.net/consor/cgi-bin/Disease_Classif.php?lng=EN&amp;data_id=156&amp;PatId=605&amp;search=Disease_Classif_Simple&amp;new=1" class="ital bold">this link</a> to review classifications for <span class="ital">Cholestanol storage disease</span> in Orphanet.</div></div></div>
</div>
<div class="portlet mgSection" id="ID_105">
<div class="portlet_head mgSectionHead ui-widget-header"><h1 class="nl" id="Professional_guidelines">Professional guidelines</h1><a sid="105" href="#" class="portlet_shutter" title="Show/hide content"></a></div>
<div class="portlet_content ln"><h3 class="subhead">PubMed<a class="help jig-ncbi-popper" data-jig="ncbipopper" href="#guidelinesHelpPM"><img class="pulldown" src="//static.pubmed.gov/portal/portal3rc.fcgi/4223267/img/4204968" /></a></h3>
<div class="nl"><a target="_blank" href="/pubmed/33760321">Expanding the clinical spectrum of cerebrotendinous xanthomatosis: Implications for newborn screening, follow-up and treatment.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Hollak CEM</span><br />
<span class="medgenPMjournal">J Intern Med</span>
2021 Nov;290(5):942-943.
Epub 2021 Mar 24
doi: 10.1111/joim.13276.
<span class="bold">PMID: </span><a href="/pubmed/33760321" target="_blank">33760321</a></div>
<div class="nl"><a target="_blank" href="/pubmed/14572142">Cerebrotendinous xanthomatosis: clinical manifestations, diagnostic criteria, pathogenesis, and therapy.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Federico A,
Dotti MT</span><br />
<span class="medgenPMjournal">J Child Neurol</span>
2003 Sep;18(9):633-8.
doi: 10.1177/08830738030180091001.
<span class="bold">PMID: </span><a href="/pubmed/14572142" target="_blank">14572142</a></div>
<div class="nl"><a target="_blank" href="/pubmed/3587638">Cerebrotendinous xanthomatosis: more on diagnosis and treatment.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Waterreus RJ,
Koopman BJ</span><br />
<span class="medgenPMjournal">Neurology</span>
1987 Jun;37(6):1091-2.
doi: 10.1212/wnl.37.6.1091-a.
<span class="bold">PMID: </span><a href="/pubmed/3587638" target="_blank">3587638</a></div>
<div><a target="_blank" href="https://pubmed.ncbi.nlm.nih.gov/?term=(cholestanol%20storage%20disease)%20AND%20(%22english%20and%20humans%22%5BFilter%5D)%20AND%20(%20(%22practice%20guideline%22%5BFilter%5D)%20OR%20(practice*%5Btitl%5D%20AND%20(guideline%5Btitl%5D%20OR%20parameter%5Btitl%5D%20OR%20resource%5Btitl%5D%20OR%20bulletin%5Btitl%5D%20OR%20best%5Btitl%5D))%20OR%20(genetic*%5Btitl%5D%20AND%20(evaluation%5Btitl%5D%20OR%20counseling%5Btitl%5D%20OR%20screening%5Btitl%5D%20OR%20test*%5Btitl%5D))%20OR%20(clinical%5Btitl%5D%20AND%20((expert%5Btitl%5D%20AND%20consensus%5Btitl%5D)%20OR%20utility%5Btitl%5D%20OR%20guideline*%5Btitl%5D))%20OR%20(management%5Btitl%5D%20AND%20(clinical%5Btitl%5D%20OR%20diagnos*%5Btitl%5D%20OR%20recommendation%5Btitl%5D%20OR%20pain%5Btitl%5D%20OR%20surveillance%5Btitl%5D%20OR%20emergency%5Btitl%5D%20OR%20guideline*%5Btitl%5D%20OR%20therap*))%20OR%20(treatment%5Btitl%5D%20AND%20((evaluation%5Btitl%5D%20AND%20diagnosis%5Btitl%5D)%20OR%20(assessment%5Btitl%5D%20AND%20prevention%5Btitl%5D)%20OR%20therap*))%20OR%20(Diagnos*%5Btitl%5D%20AND%20(prenatal%5Btitl%5D%20OR%20treatment%5Btitl%5D%20OR%20follow-up%5Btitl%5D%20OR%20statement%5Btitl%5D%20OR%20criteria%5Btitl%5D%20OR%20newborn%5Btitl%5D%20OR%20differential%5Btitl%5D%20OR%20neonatal%5Btitl%5D%20OR%20neonate%5Btitl%5D))%20OR%20(guideline*%5Btitl%5D%20AND%20(pharmacogenetic*%5Btitl%5D%20OR%20recommendation%5Btitl%5D%20OR%20therap*%5Btitl%5D%20OR%20evidence-based%5Btitl%5D%20OR%20consensus%5Btitl%5D%20OR%20(technical%5Btitl%5D%20AND%20standard*%5Btitl%5D)%20OR%20(molecular%5Btitl%5D%20AND%20testing%5Btitl%5D)))%20OR%20(risk%5Btitl%5D%20AND%20assessment%5Btitl%5D)%20OR%20(recommendation*%5Btitl%5D%20AND%20(statement%5Btitl%5D%20OR%20Evidence-based%5Btitl%5D%20OR%20Consensus%5Btitl%5D))%20OR%20(care%20AND%20((Patient%5Btitl%5D%20AND%20standard*%5Btitl%5D)%20OR%20primary%5Btitl%5D%20OR%20psychosocial%5Btitl%5D))%20OR%20(Health%5Btitl%5D%20AND%20supervision%5Btitl%5D)%20OR%20(statement%5Btitl%5D%20AND%20(policy%5Btitl%5D%20OR%20position%5Btitl%5D%20OR%20Consensus%5Btitl%5D))%20OR%20(pharmacogenetics%5Btitl%5D%20AND%20(Dosing%5Btitl%5D%20OR%20therap*%5Btitl%5D%20OR%20genotype*%5Btitl%5D%20OR%20drug*%5Btitl%5D))%20OR%20(Chemotherapy%5Btitl%5D%20AND%20decision*%5Btitl%5D)%20OR%20(screening%5Btitl%5D%20AND%20(newborn%5Btitl%5D%20OR%20neonat*%5Btitl%5D%20OR%20detection%5Btitl%5D%20OR%20diagnos*%5Btitl%5D))%20OR%20(criteria%5Btitl%5D%20OR%20genotype*%5Btitl%5D)%20)%20NOT%20(%22Case%20reports%22%5BPublication%20type%5D%20OR%20%22clinical%20study%22%5BPublication%20Type%5D%20OR%20%22randomized%20controlled%20trial%22%5BPublication%20Type%5D)" title="PubMed search">See all (40)</a></div></div>
</div>
<div class="display-none help-popup" id="guidelinesHelpPM">These guidelines are articles in PubMed that match specific search criteria developed by MedGen to capture the most relevant practice guidelines. This list may not be comprehensive and may include broader topics as well. See the <a href="/medgen/docs/faq/" title="Frequently asked questions" target="_blank">FAQ</a> for details.</div><div class="display-none help-popup" id="guidelinesHelpCurated">These guidelines are manually curated by the MedGen team
to supplement articles available in PubMed. See the <a href="/medgen/docs/faq/" title="Frequently asked questions" target="_blank">FAQ</a> for details.</div>
<div class="portlet mgSection" id="ID_103">
<div class="portlet_head mgSectionHead ui-widget-header"><h1 class="nl" id="Recent_clinical_studies">Recent clinical studies</h1><a sid="103" href="#" class="portlet_shutter" title="Show/hide content"></a></div>
<div class="portlet_content ln"><h3 class="subhead">Etiology</h3>
<div class="nl"><a target="_blank" href="/pubmed/37543441">Treatment of cerebrotendinous xanthomatosis in pregnancy: Patient and physician perspectives.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Duell PB,
Dutta R,
Wolf A,
Rosengrant H</span><br />
<span class="medgenPMjournal">J Clin Lipidol</span>
2023 Sep-Oct;17(5):700-703.
Epub 2023 Jul 17
doi: 10.1016/j.jacl.2023.07.002.
<span class="bold">PMID: </span><a href="/pubmed/37543441" target="_blank">37543441</a></div>
<div class="nl"><a target="_blank" href="/pubmed/31829048">An update on clinical, pathological, diagnostic, and therapeutic perspectives of childhood leukodystrophies.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Ashrafi MR,
Amanat M,
Garshasbi M,
Kameli R,
Nilipour Y,
Heidari M,
Rezaei Z,
Tavasoli AR</span><br />
<span class="medgenPMjournal">Expert Rev Neurother</span>
2020 Jan;20(1):65-84.
Epub 2019 Dec 12
doi: 10.1080/14737175.2020.1699060.
<span class="bold">PMID: </span><a href="/pubmed/31829048" target="_blank">31829048</a></div>
<div class="nl"><a target="_blank" href="/pubmed/29302065">Adulthood leukodystrophies.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Köhler W,
Curiel J,
Vanderver A</span><br />
<span class="medgenPMjournal">Nat Rev Neurol</span>
2018 Feb;14(2):94-105.
Epub 2018 Jan 5
doi: 10.1038/nrneurol.2017.175.
<span class="bold">PMID: </span><a href="/pubmed/29302065" target="_blank">29302065</a><a href="/pmc/articles/PMC11348681" target="_blank" class="PubMedFree">Free PMC Article</a></div>
<div class="nl"><a target="_blank" href="/pubmed/23538602">Hereditary ataxias: overview.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Jayadev S,
Bird TD</span><br />
<span class="medgenPMjournal">Genet Med</span>
2013 Sep;15(9):673-83.
Epub 2013 Mar 28
doi: 10.1038/gim.2013.28.
<span class="bold">PMID: </span><a href="/pubmed/23538602" target="_blank">23538602</a></div>
<div class="nl"><a target="_blank" href="/pubmed/15599566">Sitosterolemia--a rare disease. Are elevated plant sterols an additional risk factor?</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Sudhop T,
von Bergmann K</span><br />
<span class="medgenPMjournal">Z Kardiol</span>
2004 Dec;93(12):921-8.
doi: 10.1007/s00392-004-0165-2.
<span class="bold">PMID: </span><a href="/pubmed/15599566" target="_blank">15599566</a></div>
<div><a target="_blank" href="https://pubmed.ncbi.nlm.nih.gov/?term=%22Cholestanol%20storage%20disease%22%20AND%20Etiology%2Fbroad%5Bfilter%5D%20%20AND%20%22english%20and%20humans%22%5Bfilter%5D%20NOT%20comment%5BPTYP%5D%20NOT%20letter%5BPTYP%5D" title="PubMed search">See all (108)</a></div><h3 class="subhead">Diagnosis</h3>
<div class="nl"><a target="_blank" href="/pubmed/35963626">The Inherited Hypercholesterolemias.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Loh WJ,
Watts GF</span><br />
<span class="medgenPMjournal">Endocrinol Metab Clin North Am</span>
2022 Sep;51(3):511-537.
Epub 2022 Jul 4
doi: 10.1016/j.ecl.2022.02.006.
<span class="bold">PMID: </span><a href="/pubmed/35963626" target="_blank">35963626</a></div>
<div class="nl"><a target="_blank" href="/pubmed/33853856">Cerebrotendinous xanthomatosis revisited.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Baghbanian SM,
Mahdavi Amiri MR,
Majidi H</span><br />
<span class="medgenPMjournal">Pract Neurol</span>
2021 Jun;21(3):243-245.
Epub 2021 Apr 14
doi: 10.1136/practneurol-2020-002895.
<span class="bold">PMID: </span><a href="/pubmed/33853856" target="_blank">33853856</a></div>
<div class="nl"><a target="_blank" href="/pubmed/31829048">An update on clinical, pathological, diagnostic, and therapeutic perspectives of childhood leukodystrophies.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Ashrafi MR,
Amanat M,
Garshasbi M,
Kameli R,
Nilipour Y,
Heidari M,
Rezaei Z,
Tavasoli AR</span><br />
<span class="medgenPMjournal">Expert Rev Neurother</span>
2020 Jan;20(1):65-84.
Epub 2019 Dec 12
doi: 10.1080/14737175.2020.1699060.
<span class="bold">PMID: </span><a href="/pubmed/31829048" target="_blank">31829048</a></div>
<div class="nl"><a target="_blank" href="/pubmed/29903445">Laboratory investigations.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Boltshauser E,
Weber KP</span><br />
<span class="medgenPMjournal">Handb Clin Neurol</span>
2018;154:287-298.
doi: 10.1016/B978-0-444-63956-1.00017-5.
<span class="bold">PMID: </span><a href="/pubmed/29903445" target="_blank">29903445</a></div>
<div class="nl"><a target="_blank" href="/pubmed/29302065">Adulthood leukodystrophies.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Köhler W,
Curiel J,
Vanderver A</span><br />
<span class="medgenPMjournal">Nat Rev Neurol</span>
2018 Feb;14(2):94-105.
Epub 2018 Jan 5
doi: 10.1038/nrneurol.2017.175.
<span class="bold">PMID: </span><a href="/pubmed/29302065" target="_blank">29302065</a><a href="/pmc/articles/PMC11348681" target="_blank" class="PubMedFree">Free PMC Article</a></div>
<div><a target="_blank" href="https://pubmed.ncbi.nlm.nih.gov/?term=%22Cholestanol%20storage%20disease%22%20AND%20Diagnosis%2Fbroad%5Bfilter%5D%20%20AND%20%22english%20and%20humans%22%5Bfilter%5D%20NOT%20comment%5BPTYP%5D%20NOT%20letter%5BPTYP%5D" title="PubMed search">See all (319)</a></div><h3 class="subhead">Therapy</h3>
<div class="nl"><a target="_blank" href="/pubmed/37543441">Treatment of cerebrotendinous xanthomatosis in pregnancy: Patient and physician perspectives.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Duell PB,
Dutta R,
Wolf A,
Rosengrant H</span><br />
<span class="medgenPMjournal">J Clin Lipidol</span>
2023 Sep-Oct;17(5):700-703.
Epub 2023 Jul 17
doi: 10.1016/j.jacl.2023.07.002.
<span class="bold">PMID: </span><a href="/pubmed/37543441" target="_blank">37543441</a></div>
<div class="nl"><a target="_blank" href="/pubmed/30266156">Inborn Errors of Bile Acid Metabolism.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Heubi JE,
Setchell KDR,
Bove KE</span><br />
<span class="medgenPMjournal">Clin Liver Dis</span>
2018 Nov;22(4):671-687.
Epub 2018 Aug 22
doi: 10.1016/j.cld.2018.06.006.
<span class="bold">PMID: </span><a href="/pubmed/30266156" target="_blank">30266156</a></div>
<div class="nl"><a target="_blank" href="/pubmed/25712136">Genetics of familial hypercholesterolemia.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Brautbar A,
Leary E,
Rasmussen K,
Wilson DP,
Steiner RD,
Virani S</span><br />
<span class="medgenPMjournal">Curr Atheroscler Rep</span>
2015 Apr;17(4):491.
doi: 10.1007/s11883-015-0491-z.
<span class="bold">PMID: </span><a href="/pubmed/25712136" target="_blank">25712136</a></div>
<div class="nl"><a target="_blank" href="/pubmed/14572142">Cerebrotendinous xanthomatosis: clinical manifestations, diagnostic criteria, pathogenesis, and therapy.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Federico A,
Dotti MT</span><br />
<span class="medgenPMjournal">J Child Neurol</span>
2003 Sep;18(9):633-8.
doi: 10.1177/08830738030180091001.
<span class="bold">PMID: </span><a href="/pubmed/14572142" target="_blank">14572142</a></div>
<div class="nl"><a target="_blank" href="/pubmed/1817043">Biochemical abnormalities in cerebrotendinous xanthomatosis.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Salen G,
Shefer S,
Berginer V</span><br />
<span class="medgenPMjournal">Dev Neurosci</span>
1991;13(4-5):363-70.
doi: 10.1159/000112186.
<span class="bold">PMID: </span><a href="/pubmed/1817043" target="_blank">1817043</a></div>
<div><a target="_blank" href="https://pubmed.ncbi.nlm.nih.gov/?term=%22Cholestanol%20storage%20disease%22%20AND%20Therapy%2Fbroad%5Bfilter%5D%20%20AND%20%22english%20and%20humans%22%5Bfilter%5D%20NOT%20comment%5BPTYP%5D%20NOT%20letter%5BPTYP%5D" title="PubMed search">See all (149)</a></div><h3 class="subhead">Prognosis</h3>
<div class="nl"><a target="_blank" href="/pubmed/33630770">Update on cerebrotendinous xanthomatosis.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">DeBarber AE,
Duell PB</span><br />
<span class="medgenPMjournal">Curr Opin Lipidol</span>
2021 Apr 1;32(2):123-131.
doi: 10.1097/MOL.0000000000000740.
<span class="bold">PMID: </span><a href="/pubmed/33630770" target="_blank">33630770</a></div>
<div class="nl"><a target="_blank" href="/pubmed/29302065">Adulthood leukodystrophies.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Köhler W,
Curiel J,
Vanderver A</span><br />
<span class="medgenPMjournal">Nat Rev Neurol</span>
2018 Feb;14(2):94-105.
Epub 2018 Jan 5
doi: 10.1038/nrneurol.2017.175.
<span class="bold">PMID: </span><a href="/pubmed/29302065" target="_blank">29302065</a><a href="/pmc/articles/PMC11348681" target="_blank" class="PubMedFree">Free PMC Article</a></div>
<div class="nl"><a target="_blank" href="/pubmed/28980151">Epidemiology, diagnosis, and treatment of cerebrotendinous xanthomatosis (CTX).</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Salen G,
Steiner RD</span><br />
<span class="medgenPMjournal">J Inherit Metab Dis</span>
2017 Nov;40(6):771-781.
Epub 2017 Oct 4
doi: 10.1007/s10545-017-0093-8.
<span class="bold">PMID: </span><a href="/pubmed/28980151" target="_blank">28980151</a></div>
<div class="nl"><a target="_blank" href="/pubmed/17112370">Autosomal recessive cerebellar ataxias.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Palau F,
Espinós C</span><br />
<span class="medgenPMjournal">Orphanet J Rare Dis</span>
2006 Nov 17;1:47.
doi: 10.1186/1750-1172-1-47.
<span class="bold">PMID: </span><a href="/pubmed/17112370" target="_blank">17112370</a><a href="/pmc/articles/PMC1664553" target="_blank" class="PubMedFree">Free PMC Article</a></div>
<div class="nl"><a target="_blank" href="/pubmed/3925446">Cerebrotendinous xanthomatosis is treatable.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">White SW</span><br />
<span class="medgenPMjournal">Pediatr Dermatol</span>
1985 Jul;2(4):294-6.
doi: 10.1111/j.1525-1470.1985.tb00468.x.
<span class="bold">PMID: </span><a href="/pubmed/3925446" target="_blank">3925446</a></div>
<div><a target="_blank" href="https://pubmed.ncbi.nlm.nih.gov/?term=%22Cholestanol%20storage%20disease%22%20AND%20Prognosis%2Fbroad%5Bfilter%5D%20%20AND%20%22english%20and%20humans%22%5Bfilter%5D%20NOT%20comment%5BPTYP%5D%20NOT%20letter%5BPTYP%5D" title="PubMed search">See all (66)</a></div><h3 class="subhead">Clinical prediction guides</h3>
<div class="nl"><a target="_blank" href="/pubmed/32865394">An Optimized NMR Stripline for Sensitive Supercritical Fluid Chromatography-Nuclear Magnetic Resonance of Microliter Sample Volumes.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">van Meerten S,
van Zelst F,
Tijssen K,
Kentgens A</span><br />
<span class="medgenPMjournal">Anal Chem</span>
2020 Oct 6;92(19):13010-13016.
Epub 2020 Sep 22
doi: 10.1021/acs.analchem.0c01827.
<span class="bold">PMID: </span><a href="/pubmed/32865394" target="_blank">32865394</a><a href="/pmc/articles/PMC7547862" target="_blank" class="PubMedFree">Free PMC Article</a></div>
<div class="nl"><a target="_blank" href="/pubmed/32531740">Multifocal, hypoechogenic nerve thickening in Cerebrotendinous Xanthomatosis.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Roeben B,
Just J,
Hengel H,
Bender F,
Pöschl P,
Synofzik M,
Schöls L,
Grimm A</span><br />
<span class="medgenPMjournal">Clin Neurophysiol</span>
2020 Aug;131(8):1798-1803.
Epub 2020 May 21
doi: 10.1016/j.clinph.2020.04.162.
<span class="bold">PMID: </span><a href="/pubmed/32531740" target="_blank">32531740</a></div>
<div class="nl"><a target="_blank" href="/pubmed/24080357">Mutation in CYP27A1 identified in family with coronary artery disease.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Inanloorahatloo K,
Zand Parsa AF,
Huse K,
Rasooli P,
Davaran S,
Platzer M,
Fan JB,
Amini S,
Steemers F,
Elahi E</span><br />
<span class="medgenPMjournal">Eur J Med Genet</span>
2013 Dec;56(12):655-60.
Epub 2013 Sep 28
doi: 10.1016/j.ejmg.2013.09.008.
<span class="bold">PMID: </span><a href="/pubmed/24080357" target="_blank">24080357</a></div>
<div class="nl"><a target="_blank" href="/pubmed/20852892">The molecular basis of autosomal recessive diseases among the Arabs and Druze in Israel.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Zlotogora J</span><br />
<span class="medgenPMjournal">Hum Genet</span>
2010 Nov;128(5):473-9.
Epub 2010 Sep 18
doi: 10.1007/s00439-010-0890-8.
<span class="bold">PMID: </span><a href="/pubmed/20852892" target="_blank">20852892</a></div>
<div class="nl"><a target="_blank" href="/pubmed/18344012">Leukoencephalopathies associated with inborn errors of metabolism in adults.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Sedel F,
Tourbah A,
Fontaine B,
Lubetzki C,
Baumann N,
Saudubray JM,
Lyon-Caen O</span><br />
<span class="medgenPMjournal">J Inherit Metab Dis</span>
2008 Jun;31(3):295-307.
Epub 2008 Feb 25
doi: 10.1007/s10545-008-0778-0.
<span class="bold">PMID: </span><a href="/pubmed/18344012" target="_blank">18344012</a></div>
<div><a target="_blank" href="https://pubmed.ncbi.nlm.nih.gov/?term=%22Cholestanol%20storage%20disease%22%20AND%20Clinical%20prediction%20guides%2Fbroad%5Bfilter%5D%20%20AND%20%22english%20and%20humans%22%5Bfilter%5D%20NOT%20comment%5BPTYP%5D%20NOT%20letter%5BPTYP%5D" title="PubMed search">See all (74)</a></div></div>
</div>
<div class="portlet mgSection" id="ID_104">
<div class="portlet_head mgSectionHead ui-widget-header"><h1 class="nl" id="Recent_systematic_reviews">Recent systematic reviews</h1><a sid="104" href="#" class="portlet_shutter" title="Show/hide content"></a></div>
<div class="portlet_content ln">
<div class="nl"><a target="_blank" href="/pubmed/39874852">Cerebrotendinous Xanthomatosis occurs at high frequency in Ashkenazi Jews.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Hanson J,
Bonnen PE</span><br />
<span class="medgenPMjournal">Mol Genet Metab</span>
2025 Mar;144(3):109041.
Epub 2025 Jan 22
doi: 10.1016/j.ymgme.2025.109041.
<span class="bold">PMID: </span><a href="/pubmed/39874852" target="_blank">39874852</a></div>
<div class="nl"><a target="_blank" href="/pubmed/39702264">The clinical and biochemical effectiveness and safety of cholic acid treatment for bile acid synthesis defects: a systematic review.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Polak Y,
van Dussen L,
Kemper EM,
Vaz FM,
Klouwer FCC,
Engelen M,
Hollak CEM</span><br />
<span class="medgenPMjournal">Orphanet J Rare Dis</span>
2024 Dec 19;19(1):466.
doi: 10.1186/s13023-024-03449-7.
<span class="bold">PMID: </span><a href="/pubmed/39702264" target="_blank">39702264</a><a href="/pmc/articles/PMC11657003" target="_blank" class="PubMedFree">Free PMC Article</a></div>
<div class="nl"><a target="_blank" href="/pubmed/34689324">First case series of Polish patients with cerebrotendinous xanthomatosis and systematic review of cases from the 21st century.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Badura-Stronka M,
Hirschfeld AS,
Winczewska-Wiktor A,
Budzyńska E,
Jakubiuk-Tomaszuk A,
Piontek A,
Steinborn B,
Kozubski W</span><br />
<span class="medgenPMjournal">Clin Genet</span>
2022 Feb;101(2):190-207.
Epub 2021 Nov 24
doi: 10.1111/cge.14079.
<span class="bold">PMID: </span><a href="/pubmed/34689324" target="_blank">34689324</a></div>
<div class="nl"><a target="_blank" href="/pubmed/24775716">Diagnostic and treatment implications of psychosis secondary to treatable metabolic disorders in adults: a systematic review.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Bonnot O,
Klünemann HH,
Sedel F,
Tordjman S,
Cohen D,
Walterfang M</span><br />
<span class="medgenPMjournal">Orphanet J Rare Dis</span>
2014 Apr 28;9:65.
doi: 10.1186/1750-1172-9-65.
<span class="bold">PMID: </span><a href="/pubmed/24775716" target="_blank">24775716</a><a href="/pmc/articles/PMC4043981" target="_blank" class="PubMedFree">Free PMC Article</a></div>
<div class="nl"><a target="_blank" href="/pubmed/23115103">Myoclonus and dystonia in cerebrotendinous xanthomatosis.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Lagarde J,
Roze E,
Apartis E,
Pothalil D,
Sedel F,
Couvert P,
Vidailhet M,
Degos B</span><br />
<span class="medgenPMjournal">Mov Disord</span>
2012 Dec;27(14):1805-10.
Epub 2012 Oct 31
doi: 10.1002/mds.25206.
<span class="bold">PMID: </span><a href="/pubmed/23115103" target="_blank">23115103</a></div>
<div><a target="_blank" href="https://pubmed.ncbi.nlm.nih.gov/?term=%22Cholestanol%20storage%20disease%22%20AND%20systematic%5Bsb%5D%20AND%20%22english%20and%20humans%22%5Bfilter%5D%20NOT%20comment%5BPTYP%5D%20NOT%20letter%5BPTYP%5D" title="PubMed search">See all (5)</a></div></div>
</div>
</div></div></div></div></div></div></div>
<div id="messagearea_bottom">
</div>
<div class=" bottom">
</div>
</div>
</div>
<div class="supplemental col three_col last">
<h2 class="offscreen_noflow">Supplemental Content</h2>
<div>
<!-- MedGen supplemental column starts here -->
<div class="rightCol mgCol">
<div class="portlet mgSection" id="ID_113">
<div class="portlet_head mgSectionHead ui-widget-header"><h1 class="nl" id="Table_of_contents">Table of contents</h1><a sid="113" href="#" class="portlet_shutter" title="Show/hide content"></a></div>
<div class="portlet_content ln"><ul id="my-toc"></ul></div>
</div>
<div class="portlet mgSection" id="ID_106">
<div class="portlet_head mgSectionHead ui-widget-header"><h1 class="nl" id="Genetic_Testing_Registry">Genetic Testing Registry</h1><a sid="106" href="#" class="portlet_shutter" title="Show/hide content"></a></div>
<div class="portlet_content ln"><ul><li><a href="/gtr/tests?term=C0238052%5bDISCUI%5d&amp;filter=method%3A1%5F1" target="_blank">Analyte (11)</a></li>
<li><a href="/gtr/tests?term=C0238052%5bDISCUI%5d&amp;filter=method%3A2%5F8" target="_blank">Deletion/duplication analysis (74)</a></li>
<li><a href="/gtr/tests?term=C0238052%5bDISCUI%5d&amp;filter=method%3A1%5F2" target="_blank">Enzyme assay (3)</a></li>
<li><a href="/gtr/tests?term=C0238052%5bDISCUI%5d&amp;filter=method%3A2%5F12" target="_blank">Microsatellite instability testing (MSI) (1)</a></li>
<li><a href="/gtr/tests?term=C0238052%5bDISCUI%5d&amp;filter=method%3A2%5F18" target="_blank">Mutation scanning of select exons (3)</a></li>
<li><a href="/gtr/tests?term=C0238052%5bDISCUI%5d&amp;filter=method%3A2%5F9" target="_blank">Sequence analysis of select exons (13)</a></li>
<li><a href="/gtr/tests?term=C0238052%5bDISCUI%5d&amp;filter=method%3A2%5F7" target="_blank">Sequence analysis of the entire coding region (100)</a></li>
<li><a href="/gtr/tests?term=C0238052%5bDISCUI%5d&amp;filter=method%3A2%5F19" target="_blank">Targeted variant analysis (32)</a></li>
<li class="portletSeeAll portletSeeAllPad"><total><a href="/gtr/tests?term=C0238052%5bDISCUI%5d" target="_blank">See all (125)</a></total></li>
</ul></div>
</div>
<div class="portlet mgSection" id="ID_119">
<div class="portlet_head mgSectionHead ui-widget-header"><h1 class="nl" id="Clinical_resources">Clinical resources</h1><a sid="119" href="#" class="portlet_shutter" title="Show/hide content"></a></div>
<div class="portlet_content ln"><ul><li><a href="https://www.omim.org/search?index=entry&amp;start=1&amp;limit=10&amp;sort=score%20desc&amp;field=number&amp;search=213700" target="_blank">OMIM</a></li><li><a href="http://www.orpha.net/consor/cgi-bin/OC_Exp.php?Expert=909" target="_blank">Orphanet</a></li><li><a href="https://clinicaltrials.gov/search?cond=Cholestanol%20storage%20disease" target="_blank">ClinicalTrials.gov</a></li></ul></div>
</div>
<div class="portlet mgSection" id="ID_121">
<div class="portlet_head mgSectionHead ui-widget-header"><h1 class="nl" id="Practice_guidelines">Practice guidelines</h1><a sid="121" href="#" class="portlet_shutter" title="Show/hide content"></a></div>
<div class="portlet_content ln"><ul class="a_poppers"><li><a target="_blank" href="https://pubmed.ncbi.nlm.nih.gov/?term=(cholestanol%20storage%20disease)%20AND%20(%22english%20and%20humans%22%5BFilter%5D)%20AND%20(%20(%22practice%20guideline%22%5BFilter%5D)%20OR%20(practice*%5Btitl%5D%20AND%20(guideline%5Btitl%5D%20OR%20parameter%5Btitl%5D%20OR%20resource%5Btitl%5D%20OR%20bulletin%5Btitl%5D%20OR%20best%5Btitl%5D))%20OR%20(genetic*%5Btitl%5D%20AND%20(evaluation%5Btitl%5D%20OR%20counseling%5Btitl%5D%20OR%20screening%5Btitl%5D%20OR%20test*%5Btitl%5D))%20OR%20(clinical%5Btitl%5D%20AND%20((expert%5Btitl%5D%20AND%20consensus%5Btitl%5D)%20OR%20utility%5Btitl%5D%20OR%20guideline*%5Btitl%5D))%20OR%20(management%5Btitl%5D%20AND%20(clinical%5Btitl%5D%20OR%20diagnos*%5Btitl%5D%20OR%20recommendation%5Btitl%5D%20OR%20pain%5Btitl%5D%20OR%20surveillance%5Btitl%5D%20OR%20emergency%5Btitl%5D%20OR%20guideline*%5Btitl%5D%20OR%20therap*))%20OR%20(treatment%5Btitl%5D%20AND%20((evaluation%5Btitl%5D%20AND%20diagnosis%5Btitl%5D)%20OR%20(assessment%5Btitl%5D%20AND%20prevention%5Btitl%5D)%20OR%20therap*))%20OR%20(Diagnos*%5Btitl%5D%20AND%20(prenatal%5Btitl%5D%20OR%20treatment%5Btitl%5D%20OR%20follow-up%5Btitl%5D%20OR%20statement%5Btitl%5D%20OR%20criteria%5Btitl%5D%20OR%20newborn%5Btitl%5D%20OR%20differential%5Btitl%5D%20OR%20neonatal%5Btitl%5D%20OR%20neonate%5Btitl%5D))%20OR%20(guideline*%5Btitl%5D%20AND%20(pharmacogenetic*%5Btitl%5D%20OR%20recommendation%5Btitl%5D%20OR%20therap*%5Btitl%5D%20OR%20evidence-based%5Btitl%5D%20OR%20consensus%5Btitl%5D%20OR%20(technical%5Btitl%5D%20AND%20standard*%5Btitl%5D)%20OR%20(molecular%5Btitl%5D%20AND%20testing%5Btitl%5D)))%20OR%20(risk%5Btitl%5D%20AND%20assessment%5Btitl%5D)%20OR%20(recommendation*%5Btitl%5D%20AND%20(statement%5Btitl%5D%20OR%20Evidence-based%5Btitl%5D%20OR%20Consensus%5Btitl%5D))%20OR%20(care%20AND%20((Patient%5Btitl%5D%20AND%20standard*%5Btitl%5D)%20OR%20primary%5Btitl%5D%20OR%20psychosocial%5Btitl%5D))%20OR%20(Health%5Btitl%5D%20AND%20supervision%5Btitl%5D)%20OR%20(statement%5Btitl%5D%20AND%20(policy%5Btitl%5D%20OR%20position%5Btitl%5D%20OR%20Consensus%5Btitl%5D))%20OR%20(pharmacogenetics%5Btitl%5D%20AND%20(Dosing%5Btitl%5D%20OR%20therap*%5Btitl%5D%20OR%20genotype*%5Btitl%5D%20OR%20drug*%5Btitl%5D))%20OR%20(Chemotherapy%5Btitl%5D%20AND%20decision*%5Btitl%5D)%20OR%20(screening%5Btitl%5D%20AND%20(newborn%5Btitl%5D%20OR%20neonat*%5Btitl%5D%20OR%20detection%5Btitl%5D%20OR%20diagnos*%5Btitl%5D))%20OR%20(criteria%5Btitl%5D%20OR%20genotype*%5Btitl%5D)%20)%20NOT%20(%22Case%20reports%22%5BPublication%20type%5D%20OR%20%22clinical%20study%22%5BPublication%20Type%5D%20OR%20%22randomized%20controlled%20trial%22%5BPublication%20Type%5D)" title="PubMed search">PubMed</a><div class="help-popup">See practice and clinical guidelines in PubMed. The search results may include broader topics and may not capture all published guidelines. See the <a href="/medgen/docs/faq/" title="Frequently asked questions" target="_blank">FAQ</a> for details.</div></li><li><a target="_blank" href="/books/?term=((%22clinical%20guidelines%22%5BResource%20Type%5D)%20OR%20%22practice%20guideline%22%5BPublication%20Type%5D)%20AND%20(%22Cholestanol%20storage%20disease%22)">Bookshelf</a><div class="help-popup">See practice and clinical guidelines in NCBI Bookshelf. The search results may include broader topics and may not capture all published guidelines. See the <a href="/medgen/docs/faq/" title="Frequently asked questions" target="_blank">FAQ</a> for details.</div></li></ul></div>
</div>
<div class="portlet mgSection" id="ID_115">
<div class="portlet_head mgSectionHead ui-widget-header"><h1 class="nl" id="Molecular_resources">Molecular resources</h1><a sid="115" href="#" class="portlet_shutter" title="Show/hide content"></a></div>
<div class="portlet_content ln"><ul><li><a href="http://www.omim.org/search?index=entry&amp;start=1&amp;limit=10&amp;sort=score%20desc&amp;field=number&amp;search=606530" target="_blank">OMIM</a></li><li><a href="/clinvar/?term=1593[geneid]" target="_blank">View CYP27A1 variations in ClinVar</a></li><li><a href="/nuccore/189339222" target="_blank">RefSeqGene</a></li><li><a href="https://catalog.coriell.org/Search?q=213700" target="_blank">Coriell Institute for Medical Research</a></li></ul></div>
</div>
<div class="portlet mgSection" id="ID_116">
<div class="portlet_head mgSectionHead ui-widget-header"><h1 class="nl" id="Consumer_resources">Consumer resources</h1><a sid="116" href="#" class="portlet_shutter" title="Show/hide content"></a></div>
<div class="portlet_content ln"><ul><li><a href="http://www.diseaseinfosearch.org/Cerebrotendinous+Xanthomatosis/1249" target="_blank">Genetic Alliance</a></li><li><a href="https://www.malacards.org/card/cerebrotendinous_xanthomatosis" target="_blank">MalaCards</a></li><li><a href="https://vsearch.nlm.nih.gov/vivisimo/cgi-bin/query-meta?v:project=medlineplus&amp;query=Cholestanol%20storage%20disease" target="_blank">MedlinePlus</a></li><li><a href="https://medlineplus.gov/genetics/condition/cerebrotendinous-xanthomatosis" target="_blank">MedlinePlusGenetics (GHR)</a></li><li><a href="https://rarediseases.info.nih.gov/diseases/5622/disease" target="_blank">NCATS Office of Rare Diseases Research (GARD)</a></li></ul></div>
</div>
</div>
<div class="portlet brieflink">
<div class="portlet_head">
<div class="portlet_title">
<h3>Reviews</h3>
</div>
<a name="EntrezSystem2.PEntrez.MedGen.MedGen_ResultsPanel.MedGen_SingleItemSuplCluster.MedGenReviews.Shutter" sid="1" href="#" class="portlet_shutter" title="Show/hide content" remembercollapsed="true" pgsec_name="Reviews" id="EntrezSystem2.PEntrez.MedGen.MedGen_ResultsPanel.MedGen_SingleItemSuplCluster.MedGenReviews.Shutter"></a>
</div>
<div class="portlet_content">
<ul>
<li>
<a href="/pubmed/20301583" ref="ncbi_uid=&amp;discoId=gtr_reviews&amp;linkpos=1&amp;linkpostotal=3" target="_blank"><span class="gene_reviews">GeneReviews</span></a>
</li>
<li>
<a href="/pubmed/clinical?term=Cholestanol%20storage%20disease" ref="ncbi_uid=&amp;discoId=gtr_reviews&amp;linkpos=2&amp;linkpostotal=3" target="_blank">PubMed Clinical Queries</a>
</li>
<li>
<a href="/pubmed?term=Cholestanol%20storage%20disease%20AND%20humans[mesh]%20AND%20review[publication%20type]" ref="ncbi_uid=&amp;discoId=gtr_reviews&amp;linkpos=3&amp;linkpostotal=3" target="_blank">Reviews in PubMed</a>
</li>
</ul>
</div>
</div>
<!-- MedGen supplemental column ends here -->
<div class="portlet brieflink">
<div class="portlet_head">
<div class="portlet_title">
<h3>Related information</h3>
</div>
<a name="EntrezSystem2.PEntrez.MedGen.MedGen_ResultsPanel.MedGen_SingleItemSuplCluster.MedGenDiscoveryDbLinks.Shutter" sid="1" href="#" class="portlet_shutter" title="Show/hide content" remembercollapsed="true" pgsec_name="discovery_db_links" id="EntrezSystem2.PEntrez.MedGen.MedGen_ResultsPanel.MedGen_SingleItemSuplCluster.MedGenDiscoveryDbLinks.Shutter"></a>
</div>
<div class="portlet_content DiscoveryDbLinks">
<ul>
<li class="brieflinkpopper">
<a class="brieflinkpopperctrl" href="/clinvar?LinkName=medgen_clinvar&amp;from_uid=116041" ref="log$=recordlinks">ClinVar</a>
<div class="brieflinkpop offscreen_noflow">Related medical variations</div>
</li>
<li class="brieflinkpopper">
<a class="brieflinkpopperctrl" href="/gene?LinkName=medgen_gene_diseases&amp;from_uid=116041" ref="log$=recordlinks">Gene</a>
<div class="brieflinkpop offscreen_noflow">Related information in NCBI Gene</div>
</li>
<li class="brieflinkpopper">
<a class="brieflinkpopperctrl" href="/gtr/tests?term=C0238052[DISCUI]" ref="log$=recordlinks">GTR</a>
<div class="brieflinkpop offscreen_noflow">Related information in GTR</div>
</li>
<li class="brieflinkpopper">
<a class="brieflinkpopperctrl" href="/gtr/tests?term=C0238052[DISCUI]&amp;test_type=Clinical" ref="log$=recordlinks">GTR(Clinical)</a>
<div class="brieflinkpop offscreen_noflow">Clinical tests in GTR</div>
</li>
<li class="brieflinkpopper">
<a class="brieflinkpopperctrl" href="/mesh?LinkName=medgen_mesh&amp;from_uid=116041" ref="log$=recordlinks">MeSH</a>
<div class="brieflinkpop offscreen_noflow">Related Medical Subject Headings</div>
</li>
<li class="brieflinkpopper">
<a class="brieflinkpopperctrl" href="/books?LinkName=medgen_books&amp;from_uid=116041" ref="log$=recordlinks">NCBI Bookshelf</a>
<div class="brieflinkpop offscreen_noflow">Related information in NCBI Bookshelf</div>
</li>
<li class="brieflinkpopper">
<a class="brieflinkpopperctrl" href="/omim?LinkName=medgen_omim&amp;from_uid=116041" ref="log$=recordlinks">OMIM</a>
<div class="brieflinkpop offscreen_noflow">Related records in OMIM</div>
</li>
<li class="brieflinkpopper">
<a class="brieflinkpopperctrl" href="/omim?LinkName=medgen_omim_gene&amp;from_uid=116041" ref="log$=recordlinks">OMIM(Genes)</a>
<div class="brieflinkpop offscreen_noflow">OMIM records containing genes associated with phenotypes registered in MedGen</div>
</li>
<li class="brieflinkpopper">
<a class="brieflinkpopperctrl" href="/pmc?LinkName=medgen_pmc&amp;from_uid=116041" ref="log$=recordlinks">PMC Articles</a>
<div class="brieflinkpop offscreen_noflow">Related information in PubMed Central Links</div>
</li>
<li class="brieflinkpopper">
<a class="brieflinkpopperctrl" href="/pubmed?LinkName=medgen_pubmed&amp;from_uid=116041" ref="log$=recordlinks">PubMed</a>
<div class="brieflinkpop offscreen_noflow">Related literature resources in PubMed</div>
</li>
<li class="brieflinkpopper">
<a class="brieflinkpopperctrl" href="/pubmed?LinkName=medgen_pubmed_bookshelf_cited&amp;from_uid=116041" ref="log$=recordlinks">PubMed (Bookshelf cited)</a>
<div class="brieflinkpop offscreen_noflow">Links to PubMed based on citations in GeneReviews and Medical Genetics Summaries</div>
</li>
<li class="brieflinkpopper">
<a class="brieflinkpopperctrl" href="/pubmed?LinkName=medgen_pubmed_genereviews&amp;from_uid=116041" ref="log$=recordlinks">PubMed (GeneReviews)</a>
<div class="brieflinkpop offscreen_noflow">GeneReviews in PubMed</div>
</li>
<li class="brieflinkpopper">
<a class="brieflinkpopperctrl" href="/pubmed?LinkName=medgen_pubmed_omim&amp;from_uid=116041" ref="log$=recordlinks">PubMed (OMIM)</a>
<div class="brieflinkpop offscreen_noflow">Related literature resources in PubMed</div>
</li>
</ul>
</div>
</div>
<div class="portlet">
<div class="portlet_head">
<div class="portlet_title">
<h3>Recent activity</h3>
</div>
<a name="EntrezSystem2.PEntrez.MedGen.MedGen_ResultsPanel.HistoryDisplay.Shutter" sid="1" href="#" class="portlet_shutter" title="Show/hide content" remembercollapsed="true" pgsec_name="recent_activity" id="EntrezSystem2.PEntrez.MedGen.MedGen_ResultsPanel.HistoryDisplay.Shutter"></a>
</div>
<div class="portlet_content">
<div id="HTDisplay" class="">
<input name="EntrezSystem2.PEntrez.MedGen.MedGen_ResultsPanel.HistoryDisplay.Cmd" sid="1" type="hidden" />
<div class="action">
<a name="EntrezSystem2.PEntrez.MedGen.MedGen_ResultsPanel.HistoryDisplay.ClearHistory" sid="1" realname="EntrezSystem2.PEntrez.MedGen.MedGen_ResultsPanel.HistoryDisplay.ClearHistory" cmd="ClearHT" href="?cmd=ClearHT&amp;" onclick="return false;" id="EntrezSystem2.PEntrez.MedGen.MedGen_ResultsPanel.HistoryDisplay.ClearHistory">
Clear
</a>
<a name="EntrezSystem2.PEntrez.MedGen.MedGen_ResultsPanel.HistoryDisplay.HistoryToggle" sid="1" realname="EntrezSystem2.PEntrez.MedGen.MedGen_ResultsPanel.HistoryDisplay.HistoryToggle" class="HTOn" cmd="HTOff" href="?cmd=HTOff&amp;" onclick="return false;" id="EntrezSystem2.PEntrez.MedGen.MedGen_ResultsPanel.HistoryDisplay.HistoryToggle">
Turn Off
</a>
<a name="EntrezSystem2.PEntrez.MedGen.MedGen_ResultsPanel.HistoryDisplay.HistoryToggle" sid="2" realname="EntrezSystem2.PEntrez.MedGen.MedGen_ResultsPanel.HistoryDisplay.HistoryToggle" class="HTOff" cmd="HTOn" href="?cmd=HTOn&amp;" onclick="return false;" id="EntrezSystem2.PEntrez.MedGen.MedGen_ResultsPanel.HistoryDisplay.HistoryToggle">
Turn On
</a>
</div>
<ul id="activity">
<li class="ra_rcd ralinkpopper two_line">
<a class="htb ralinkpopperctrl" ref="log$=activity&amp;linkpos=1" href="/portal/utils/pageresolver.fcgi?recordid=67ca6e1da68b6b5afc7806f7">Cholestanol storage disease</a>
<div class="ralinkpop offscreen_noflow">Cholestanol storage disease<div class="brieflinkpopdesc"></div></div>
<div class="tertiary">MedGen</div>
</li>
<li class="ra_qry two_line">
<a class="htb" ref="log$=activity&amp;linkpos=2" href="/portal/utils/pageresolver.fcgi?recordid=67ca6e1ba68b6b5afc7802c7">C0238052[conceptid] <span class="number">(1)</span></a>
<div class="tertiary">MedGen</div>
</li>
<li class="ra_qry ralinkpopper two_line">
<a class="htb ralinkpopperctrl" ref="log$=activity&amp;linkpos=3" href="/portal/utils/pageresolver.fcgi?recordid=67ca6e1a84f3725e593a9dbd">C3279902[trait identifier] AND "Labcorp Genetics (formerly Invita... <span class="number">(133)</span></a>
<div class="ralinkpop offscreen_noflow">C3279902[trait identifier] AND "Labcorp Genetics (formerly Invitae), Labcorp"[submitter]<div class="brieflinkpopdesc">Search</div></div>
<div class="tertiary">ClinVar</div>
</li>
<li class="ra_rcd ralinkpopper two_line">
<a class="htb ralinkpopperctrl" ref="log$=activity&amp;linkpos=4" href="/portal/utils/pageresolver.fcgi?recordid=67ca6e19a68b6b5afc77fbe8">Chitotriosidase deficiency</a>
<div class="ralinkpop offscreen_noflow">Chitotriosidase deficiency<div class="brieflinkpopdesc"></div></div>
<div class="tertiary">MedGen</div>
</li>
<li class="ra_qry two_line">
<a class="htb" ref="log$=activity&amp;linkpos=5" href="/portal/utils/pageresolver.fcgi?recordid=67ca6e18f4a390645e450d8a">C3279902[conceptid] <span class="number">(1)</span></a>
<div class="tertiary">MedGen</div>
</li>
</ul>
<p class="HTOn">Your browsing activity is empty.</p>
<p class="HTOff">Activity recording is turned off.</p>
<p id="turnOn" class="HTOff">
<a name="EntrezSystem2.PEntrez.MedGen.MedGen_ResultsPanel.HistoryDisplay.HistoryOn" sid="1" realname="EntrezSystem2.PEntrez.MedGen.MedGen_ResultsPanel.HistoryDisplay.HistoryOn" cmd="HTOn" href="?cmd=HTOn&amp;" onclick="return false;" id="EntrezSystem2.PEntrez.MedGen.MedGen_ResultsPanel.HistoryDisplay.HistoryOn">Turn recording back on</a>
</p>
<a class="seemore" href="/sites/myncbi/recentactivity">See more...</a>
</div>
</div>
</div>
</div>
</div>
<div id="NCBIFooter_dynamic">
<!--<component id="NCBIBreadcrumbs"/>
<component id="NCBIHelpDesk"/>-->
<noscript><img alt="" src="/stat?jsdisabled=true&amp;ncbi_app=entrez&amp;ncbi_db=medgen&amp;ncbi_pdid=FullReport&amp;ncbi_phid=CE8DA6107CA630B10000000000DF00C6" /></noscript>
</div>
<div xmlns="http://www.w3.org/1999/xhtml" class="footer" id="footer" xml:base="http://127.0.0.1/sites/static/header_footer/">
<section class="icon-section">
<div id="icon-section-header" class="icon-section_header">Follow NCBI</div>
<div class="grid-container container">
<div class="icon-section_container">
<a class="footer-icon" id="footer_twitter" href="https://twitter.com/ncbi" aria-label="Twitter">
<svg xmlns="http://www.w3.org/2000/svg" width="40" height="40" viewBox="0 0 40 40" fill="none">
<title>Twitter</title>
<g id="twitterx1008">
<path id="path1008" d="M6.06736 7L16.8778 20.8991L6.00001 32.2H10.2L18.6 23.1L25.668 32.2H34L22.8 17.5L31.9 7H28.4L20.7 15.4L14.401 7H6.06898H6.06736ZM9.66753 8.73423H12.9327L29.7327 30.4658H26.5697L9.66753 8.73423Z" fill="#5B616B"></path>
</g>
</svg>
</a>
<a class="footer-icon" id="footer_facebook" href="https://www.facebook.com/ncbi.nlm" aria-label="Facebook"><svg xmlns="http://www.w3.org/2000/svg" data-name="Layer 1" viewBox="0 0 300 300">
<title>Facebook</title>
<path class="cls-11" d="M210.5,115.12H171.74V97.82c0-8.14,5.39-10,9.19-10h27.14V52l-39.32-.12c-35.66,0-42.42,26.68-42.42,43.77v19.48H99.09v36.32h27.24v109h45.41v-109h35Z">
</path>
</svg></a>
<a class="footer-icon" id="footer_linkedin" href="https://www.linkedin.com/company/ncbinlm" aria-label="LinkedIn"><svg xmlns="http://www.w3.org/2000/svg" data-name="Layer 1" viewBox="0 0 300 300">
<title>LinkedIn</title>
<path class="cls-11" d="M101.64,243.37H57.79v-114h43.85Zm-22-131.54h-.26c-13.25,0-21.82-10.36-21.82-21.76,0-11.65,8.84-21.15,22.33-21.15S101.7,78.72,102,90.38C102,101.77,93.4,111.83,79.63,111.83Zm100.93,52.61A17.54,17.54,0,0,0,163,182v61.39H119.18s.51-105.23,0-114H163v13a54.33,54.33,0,0,1,34.54-12.66c26,0,44.39,18.8,44.39,55.29v58.35H198.1V182A17.54,17.54,0,0,0,180.56,164.44Z">
</path>
</svg></a>
<a class="footer-icon" id="footer_github" href="https://github.com/ncbi" aria-label="GitHub"><svg xmlns="http://www.w3.org/2000/svg" data-name="Layer 1" viewBox="0 0 300 300">
<defs>
<style>
.cls-11,
.cls-12 {
fill: #737373;
}
.cls-11 {
fill-rule: evenodd;
}
</style>
</defs>
<title>GitHub</title>
<path class="cls-11" d="M151.36,47.28a105.76,105.76,0,0,0-33.43,206.1c5.28,1,7.22-2.3,7.22-5.09,0-2.52-.09-10.85-.14-19.69-29.42,6.4-35.63-12.48-35.63-12.48-4.81-12.22-11.74-15.47-11.74-15.47-9.59-6.56.73-6.43.73-6.43,10.61.75,16.21,10.9,16.21,10.9,9.43,16.17,24.73,11.49,30.77,8.79,1-6.83,3.69-11.5,6.71-14.14C108.57,197.1,83.88,188,83.88,147.51a40.92,40.92,0,0,1,10.9-28.39c-1.1-2.66-4.72-13.42,1-28,0,0,8.88-2.84,29.09,10.84a100.26,100.26,0,0,1,53,0C198,88.3,206.9,91.14,206.9,91.14c5.76,14.56,2.14,25.32,1,28a40.87,40.87,0,0,1,10.89,28.39c0,40.62-24.74,49.56-48.29,52.18,3.79,3.28,7.17,9.71,7.17,19.58,0,14.15-.12,25.54-.12,29,0,2.82,1.9,6.11,7.26,5.07A105.76,105.76,0,0,0,151.36,47.28Z">
</path>
<path class="cls-12" d="M85.66,199.12c-.23.52-1.06.68-1.81.32s-1.2-1.06-.95-1.59,1.06-.69,1.82-.33,1.21,1.07.94,1.6Zm-1.3-1">
</path>
<path class="cls-12" d="M90,203.89c-.51.47-1.49.25-2.16-.49a1.61,1.61,0,0,1-.31-2.19c.52-.47,1.47-.25,2.17.49s.82,1.72.3,2.19Zm-1-1.08">
</path>
<path class="cls-12" d="M94.12,210c-.65.46-1.71,0-2.37-.91s-.64-2.07,0-2.52,1.7,0,2.36.89.65,2.08,0,2.54Zm0,0"></path>
<path class="cls-12" d="M99.83,215.87c-.58.64-1.82.47-2.72-.41s-1.18-2.06-.6-2.7,1.83-.46,2.74.41,1.2,2.07.58,2.7Zm0,0">
</path>
<path class="cls-12" d="M107.71,219.29c-.26.82-1.45,1.2-2.64.85s-2-1.34-1.74-2.17,1.44-1.23,2.65-.85,2,1.32,1.73,2.17Zm0,0">
</path>
<path class="cls-12" d="M116.36,219.92c0,.87-1,1.59-2.24,1.61s-2.29-.68-2.3-1.54,1-1.59,2.26-1.61,2.28.67,2.28,1.54Zm0,0">
</path>
<path class="cls-12" d="M124.42,218.55c.15.85-.73,1.72-2,1.95s-2.37-.3-2.52-1.14.73-1.75,2-2,2.37.29,2.53,1.16Zm0,0"></path>
</svg></a>
<a class="footer-icon" id="footer_blog" href="https://ncbiinsights.ncbi.nlm.nih.gov/" aria-label="Blog">
<svg xmlns="http://www.w3.org/2000/svg" id="Layer_1" data-name="Layer 1" viewBox="0 0 40 40">
<defs><style>.cls-1{fill:#737373;}</style></defs>
<title>NCBI Insights Blog</title>
<path class="cls-1" d="M14,30a4,4,0,1,1-4-4,4,4,0,0,1,4,4Zm11,3A19,19,0,0,0,7.05,15a1,1,0,0,0-1,1v3a1,1,0,0,0,.93,1A14,14,0,0,1,20,33.07,1,1,0,0,0,21,34h3a1,1,0,0,0,1-1Zm9,0A28,28,0,0,0,7,6,1,1,0,0,0,6,7v3a1,1,0,0,0,1,1A23,23,0,0,1,29,33a1,1,0,0,0,1,1h3A1,1,0,0,0,34,33Z"></path>
</svg>
</a>
</div>
</div>
</section>
<section class="container-fluid bg-primary">
<div class="container pt-5">
<div class="row mt-3">
<div class="col-lg-3 col-12">
<p><a class="text-white" href="https://www.nlm.nih.gov/socialmedia/index.html">Connect with NLM</a></p>
<ul class="list-inline social_media">
<li class="list-inline-item"><a href="https://twitter.com/NLM_NIH" aria-label="Twitter" target="_blank" rel="noopener noreferrer">
<svg xmlns="http://www.w3.org/2000/svg" width="35" height="35" viewBox="0 0 36 35" fill="none">
<title>Twitter</title>
<g id="twitterx1009" clip-path="url(#clip0_65276_3946)">
<path id="Vector_Twitter" d="M17.5006 34.6565C26.9761 34.6565 34.6575 26.9751 34.6575 17.4996C34.6575 8.02416 26.9761 0.342773 17.5006 0.342773C8.02514 0.342773 0.34375 8.02416 0.34375 17.4996C0.34375 26.9751 8.02514 34.6565 17.5006 34.6565Z" fill="#205493" stroke="white" stroke-width="1.0" stroke-miterlimit="10"></path>
<path id="path1009" d="M8.54811 8.5L16.2698 18.4279L8.50001 26.5H11.5L17.5 20L22.5486 26.5H28.5L20.5 16L27 8.5H24.5L19 14.5L14.5007 8.5H8.54927H8.54811ZM11.1197 9.73873H13.4519L25.4519 25.2613H23.1926L11.1197 9.73873Z" fill="white"></path>
</g>
<defs>
<clipPath id="clip0_65276_3946">
<rect width="35" height="35" fill="white"></rect>
</clipPath>
</defs>
</svg>
</a></li>
<li class="list-inline-item"><a href="https://www.facebook.com/nationallibraryofmedicine" aria-label="Facebook" rel="noopener noreferrer" target="_blank">
<svg xmlns="http://www.w3.org/2000/svg" width="35" height="35" viewBox="0 0 36 35" fill="none">
<title>Facebook</title>
<g id="Facebook" clip-path="url(#clip0_1717_1086)">
<path id="Vector_Facebook" d="M15.1147 29.1371C15.1147 29.0822 15.1147 29.0296 15.1147 28.9747V18.9414H11.8183C11.6719 18.9414 11.6719 18.9414 11.6719 18.8018C11.6719 17.5642 11.6719 16.3289 11.6719 15.0937C11.6719 14.9793 11.7062 14.9518 11.816 14.9518C12.8683 14.9518 13.9206 14.9518 14.9751 14.9518H15.1215V14.8329C15.1215 13.8057 15.1215 12.774 15.1215 11.7492C15.1274 10.9262 15.3148 10.1146 15.6706 9.37241C16.1301 8.38271 16.9475 7.60378 17.9582 7.19235C18.6492 6.90525 19.3923 6.76428 20.1405 6.7783C21.0029 6.79202 21.8653 6.83091 22.7278 6.86065C22.8879 6.86065 23.048 6.89496 23.2082 6.90182C23.2974 6.90182 23.3271 6.94071 23.3271 7.02993C23.3271 7.54235 23.3271 8.05477 23.3271 8.5649C23.3271 9.16882 23.3271 9.77274 23.3271 10.3767C23.3271 10.4819 23.2974 10.5139 23.1921 10.5116C22.5379 10.5116 21.8814 10.5116 21.2271 10.5116C20.9287 10.5184 20.6316 10.5528 20.3395 10.6146C20.0822 10.6619 19.8463 10.7891 19.6653 10.9779C19.4842 11.1668 19.3672 11.4078 19.3307 11.6669C19.2857 11.893 19.2612 12.1226 19.2575 12.3531C19.2575 13.1904 19.2575 14.0299 19.2575 14.8695C19.2575 14.8946 19.2575 14.9198 19.2575 14.9564H23.0229C23.1807 14.9564 23.183 14.9564 23.1624 15.1074C23.0778 15.7662 22.9885 16.425 22.9039 17.0816C22.8322 17.6321 22.7636 18.1827 22.698 18.7332C22.6729 18.9437 22.6797 18.9437 22.4693 18.9437H19.2644V28.8992C19.2644 28.9793 19.2644 29.0593 19.2644 29.1394L15.1147 29.1371Z" fill="white"></path>
<path id="Vector_2_Facebook" d="M17.5006 34.657C26.9761 34.657 34.6575 26.9756 34.6575 17.5001C34.6575 8.02465 26.9761 0.343262 17.5006 0.343262C8.02514 0.343262 0.34375 8.02465 0.34375 17.5001C0.34375 26.9756 8.02514 34.657 17.5006 34.657Z" stroke="white" stroke-width="1.0" stroke-miterlimit="10"></path>
</g>
<defs>
<clipPath id="clip0_1717_1086">
<rect width="35" height="35" fill="white"></rect>
</clipPath>
</defs>
</svg>
</a></li>
<li class="list-inline-item"><a href="https://www.youtube.com/user/NLMNIH" aria-label="Youtube" target="_blank" rel="noopener noreferrer">
<svg xmlns="http://www.w3.org/2000/svg" width="35" height="35" viewBox="0 0 36 35" fill="none">
<title>Youtube</title>
<g id="YouTube" clip-path="url(#clip0_1717_1101)">
<path id="Vector_Youtube" d="M26.2571 11.4791C25.9025 11.1589 25.5709 10.9576 24.228 10.834C22.5512 10.6785 20.2797 10.6556 18.564 10.6533H16.4365C14.7208 10.6533 12.4493 10.6785 10.7725 10.834C9.43196 10.9576 9.09798 11.1589 8.7434 11.4791C7.81464 12.321 7.6202 14.6268 7.59961 16.8938C7.59961 17.3178 7.59961 17.741 7.59961 18.1635C7.62706 20.4121 7.82837 22.686 8.7434 23.521C9.09798 23.8412 9.42967 24.0425 10.7725 24.1661C12.4493 24.3216 14.7208 24.3445 16.4365 24.3468H18.564C20.2797 24.3468 22.5512 24.3216 24.228 24.1661C25.5686 24.0425 25.9025 23.8412 26.2571 23.521C27.1722 22.6929 27.3735 20.451 27.4009 18.2206C27.4009 17.7402 27.4009 17.2599 27.4009 16.7795C27.3735 14.5491 27.1699 12.3072 26.2571 11.4791ZM15.5604 20.5311V14.652L20.561 17.5001L15.5604 20.5311Z" fill="white"></path>
<path id="Vector_2_Youtube" d="M17.5006 34.657C26.9761 34.657 34.6575 26.9756 34.6575 17.5001C34.6575 8.02465 26.9761 0.343262 17.5006 0.343262C8.02514 0.343262 0.34375 8.02465 0.34375 17.5001C0.34375 26.9756 8.02514 34.657 17.5006 34.657Z" stroke="white" stroke-width="1.0" stroke-miterlimit="10"></path>
</g>
<defs>
<clipPath id="clip0_1717_1101">
<rect width="35" height="35" fill="white"></rect>
</clipPath>
</defs>
</svg>
</a></li>
</ul>
</div>
<div class="col-lg-3 col-12">
<p class="address_footer text-white">National Library of Medicine<br />
<a href="https://www.google.com/maps/place/8600+Rockville+Pike,+Bethesda,+MD+20894/@38.9959508,-77.101021,17z/data=!3m1!4b1!4m5!3m4!1s0x89b7c95e25765ddb:0x19156f88b27635b8!8m2!3d38.9959508!4d-77.0988323" class="text-white" target="_blank" rel="noopener noreferrer">8600 Rockville Pike<br />
Bethesda, MD 20894</a></p>
</div>
<div class="col-lg-3 col-12 centered-lg">
<p><a href="https://www.nlm.nih.gov/web_policies.html" class="text-white">Web Policies</a><br />
<a href="https://www.nih.gov/institutes-nih/nih-office-director/office-communications-public-liaison/freedom-information-act-office" class="text-white">FOIA</a><br />
<a href="https://www.hhs.gov/vulnerability-disclosure-policy/index.html" class="text-white" id="vdp">HHS Vulnerability Disclosure</a></p>
</div>
<div class="col-lg-3 col-12 centered-lg">
<p><a class="supportLink text-white" href="https://support.nlm.nih.gov/">Help</a><br />
<a href="https://www.nlm.nih.gov/accessibility.html" class="text-white">Accessibility</a><br />
<a href="https://www.nlm.nih.gov/careers/careers.html" class="text-white">Careers</a></p>
</div>
</div>
<div class="row">
<div class="col-lg-12 centered-lg">
<nav class="bottom-links">
<ul class="mt-3">
<li>
<a class="text-white" href="//www.nlm.nih.gov/">NLM</a>
</li>
<li>
<a class="text-white" href="https://www.nih.gov/">NIH</a>
</li>
<li>
<a class="text-white" href="https://www.hhs.gov/">HHS</a>
</li>
<li>
<a class="text-white" href="https://www.usa.gov/">USA.gov</a>
</li>
</ul>
</nav>
</div>
</div>
</div>
</section>
<script type="text/javascript" src="/portal/portal3rc.fcgi/rlib/js/InstrumentOmnitureBaseJS/InstrumentNCBIConfigJS/InstrumentNCBIBaseJS/InstrumentPageStarterJS.js?v=1"> </script>
<script type="text/javascript" src="/portal/portal3rc.fcgi/static/js/hfjs2.js"> </script>
</div>
</div>
<div><input name="EntrezSystem2.PEntrez.DbConnector.Db" sid="1" type="hidden" value="medgen" /><input name="EntrezSystem2.PEntrez.DbConnector.LastDb" sid="1" type="hidden" value="medgen" /><input name="EntrezSystem2.PEntrez.DbConnector.Term" sid="1" type="hidden" value="C0238052[conceptid]" /><input name="EntrezSystem2.PEntrez.DbConnector.LastTabCmd" sid="1" type="hidden" value="" /><input name="EntrezSystem2.PEntrez.DbConnector.LastQueryKey" sid="1" type="hidden" value="14505" /><input name="EntrezSystem2.PEntrez.DbConnector.IdsFromResult" sid="1" type="hidden" value="" /><input name="EntrezSystem2.PEntrez.DbConnector.LastIdsFromResult" sid="1" type="hidden" value="" /><input name="EntrezSystem2.PEntrez.DbConnector.LinkName" sid="1" type="hidden" /><input name="EntrezSystem2.PEntrez.DbConnector.LinkReadableName" sid="1" type="hidden" /><input name="EntrezSystem2.PEntrez.DbConnector.LinkSrcDb" sid="1" type="hidden" /><input name="EntrezSystem2.PEntrez.DbConnector.Cmd" sid="1" type="hidden" /><input name="EntrezSystem2.PEntrez.DbConnector.TabCmd" sid="1" type="hidden" /><input name="EntrezSystem2.PEntrez.DbConnector.QueryKey" sid="1" type="hidden" /></div>
<input type="hidden" name="p$a" id="p$a" /><input type="hidden" name="p$l" id="p$l" value="EntrezSystem2" /><input type="hidden" name="p$st" id="p$st" value="medgen" /><input name="SessionId" id="SessionId" value="CE8B5AF87C7FFCB1_0191SID" disabled="disabled" type="hidden" /><input name="Snapshot" id="Snapshot" value="/projects/Phenotype/MedGen/MedGen@6.14" disabled="disabled" type="hidden" /></form>
</div>
</div>
<!-- CE8B5AF87C7FFCB1_0191SID /projects/Phenotype/MedGen/MedGen@6.14 portal106 v4.1.r689238 Tue, Oct 22 2024 16:10:51 -->
<span id="portal-csrf-token" style="display:none" data-token="CE8B5AF87C7FFCB1_0191SID"></span>
<script type='text/javascript' src='/portal/js/portal.js'></script><script type="text/javascript" src="//static.pubmed.gov/portal/portal3rc.fcgi/4223267/js/4221766/3812534/4212053/3812535/3781605/4186313/2499590/3758627/4078478/3908752/3423/4018706/3891418/4212356/4078480/4078479/4025341/4076482/31971/35962/2733373/33966/3397055/4001808.js" snapshot="medgen"></script></body>
</html>