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<meta name="keywords" content="C1836522, adult-onset alpha-n-acetylgalactosaminidase deficiency, alpha-n-acetylgalactosaminidase deficiency adult onset, alpha-n-acetylgalactosaminidase deficiency type 2, alpha-n-acetylgalactosaminidase deficiency, adult-onset, alpha-n-acetylgalactosaminidase deficiency, type 2, alpha-n-acetylgalactosaminidase deficiency, type ii, disease or syndrome, kanzaki disease, naga, naga (alpha-n-acetylgalactosaminidase) deficiency type 2, naga deficiency type 2, naga deficiency, type 2, naga deficiency, type ii, schindler disease type 2, schindler disease, type 2, schindler disease, type ii, 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="Alpha-N-acetylgalactosaminidase (NAGA) deficiency is a very rare lysosomal storage disorder with atypical features. It is clinically heterogeneous with 3 main phenotypes: type I is an infantile-onset neuroaxonal dystrophy (609241); type II, also known as Kanzaki disease, is an adult-onset disorder characterized by angiokeratoma corporis diffusum and mild intellectual impairment; and type III is an intermediate disorder (see 609241) with mild to moderate neurologic manifestations (Desnick and Schindler, 2001)." /><meta name="robots" content="index,nofollow,noarchive" />
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<title>Alpha-N-acetylgalactosaminidase deficiency type 2 (Concept Id: C1836522)
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<!--
UID=324539
ConceptID=C1836522
-->
<!--imgCountBooks = 0--><h1 class="medgenTitle"><div class="MedGenTitleText">Alpha-N-acetylgalactosaminidase deficiency type 2</div></h1><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>324539</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.">C1836522</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>Alpha-N-acetylgalactosaminidase deficiency adult onset; ALPHA-N-ACETYLGALACTOSAMINIDASE DEFICIENCY, TYPE II; Kanzaki disease; NAGA deficiency type 2; NAGA DEFICIENCY, TYPE II; Schindler disease type 2; SCHINDLER DISEASE, TYPE II</td></tr>
<tr><td><span class="bold">SNOMED CT: </span></td>
<td>Alpha-N-acetylgalactosaminidase deficiency type 2 (880065001); Schindler disease type 2 (880065001); NAGA (alpha-N-acetylgalactosaminidase) deficiency type 2 (880065001)</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="NAGA - ID: 4668 - NCBI Gene" href="/gene/4668" class="medgenPMinfo">NAGA</a> (22q13.2)</td></tr>
<tr><td colspan="2" class="small"> </td></tr><tr><td>Monarch Initiative:</td>
<td><a href="https://monarchinitiative.org/disease/MONDO:0012222" target="_blank">MONDO:0012222</a></td></tr>
<tr><td>OMIM<span class="superscript">®</span>:</td>
<td><a href="https://omim.org/entry/609242" target="_blank">609242</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=79280">ORPHA79280</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_100">
<div class="portlet_head mgSectionHead ui-widget-header"><h1 class="nl" id="Definition">Definition</h1><a sid="100" href="#" class="portlet_shutter" title="Show/hide content"></a></div>
<div class="portlet_content ln">Alpha-N-acetylgalactosaminidase (NAGA) deficiency is a very rare lysosomal storage disorder with atypical features. It is clinically heterogeneous with 3 main phenotypes: type I is an infantile-onset neuroaxonal dystrophy (609241); type II, also known as Kanzaki disease, is an adult-onset disorder characterized by angiokeratoma corporis diffusum and mild intellectual impairment; and type III is an intermediate disorder (see 609241) with mild to moderate neurologic manifestations (Desnick and Schindler, 2001). [from <a title="Online Mendelian Inheritance in Man" href="http://www.omim.org" class="defSource" target="_blank">OMIM</a>]</div>
</div>
<div class="portlet mgSection" id="ID_117">
<div class="portlet_head mgSectionHead ui-widget-header"><h1 class="nl" id="Additional_description">Additional description</h1><a sid="117" href="#" class="portlet_shutter" title="Show/hide content"></a></div>
<div class="portlet_content ln"><div class="mgSection"><strong>From MedlinePlus Genetics</strong><br />Schindler disease is an inherited disorder that primarily causes neurological problems.<br /><br />Schindler disease type III is intermediate in severity between types I and II. Affected individuals may exhibit signs and symptoms beginning in infancy, including developmental delay, seizures, a weakened and enlarged heart (cardiomyopathy), and an enlarged liver (hepatomegaly). In other cases, people with this form of the disorder show neurodevelopmental problems beginning in early childhood, with some features of autism spectrum disorder. Autism spectrum disorder is characterized by impaired communication and socialization skills.<br /><br />There are three types of Schindler disease. Schindler disease type I, also called the infantile type, is the most severe form. Babies with Schindler disease type I appear healthy at birth, but by the age of 8 to 15 months they stop developing new skills and begin losing skills they had already acquired (developmental regression). As the disorder progresses, affected individuals develop blindness and seizures, and eventually they lose awareness of their surroundings and become unresponsive. People with this form of the disorder usually do not survive past early childhood.<br /><br />Schindler disease type II, also called Kanzaki disease, is a milder form of the disorder that usually appears in adulthood. Affected individuals may develop mild cognitive impairment and hearing loss caused by abnormalities of the inner ear (sensorineural hearing loss). They may experience weakness and loss of sensation due to problems with the nerves connecting the brain and spinal cord to muscles and sensory cells (peripheral nervous system). Clusters of enlarged blood vessels that form small, dark red spots on the skin (angiokeratomas) are characteristic of this form of the disorder.  <a target="_blank" href="https://medlineplus.gov/genetics/condition/schindler-disease">https://medlineplus.gov/genetics/condition/schindler-disease</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_116067"><div><strong>Aminoaciduria</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>116067</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.">C0238621</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">An increased concentration of an amino acid in the urine.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/116067">Feature record</a> | <a href="/medgen?term=%22Aminoaciduria%22%5BClinical%20Features%5D%20OR%20116067%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_373111"><div><strong>Increased urinary O-linked sialopeptides</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>373111</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.">C1836533</a></dd><dt><span class="dotprefix"></span></dt><dd>Finding</dd></dl></div></div></div>
<div class="spaceAbove">Excretion of peptides conjugated to sialic acid in the urine.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/373111">Feature record</a> | <a href="/medgen?term=%22Increased%20urinary%20O-linked%20sialopeptides%22%5BClinical%20Features%5D%20OR%20373111%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_9164"><div><strong>Sensorineural hearing loss disorder</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>9164</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.">C0018784</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">A type of hearing impairment in one or both ears related to an abnormal functionality of the cochlear nerve.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/9164">Feature record</a> | <a href="/medgen?term=%22Sensorineural%20hearing%20loss%20disorder%22%5BClinical%20Features%5D%20OR%209164%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_53006"><div><strong>Vertigo</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>53006</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.">C0042571</a></dd><dt><span class="dotprefix"></span></dt><dd>Sign or Symptom</dd></dl></div></div></div>
<div class="spaceAbove">An abnormal sensation of spinning while the body is actually stationary.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/53006">Feature record</a> | <a href="/medgen?term=%22Vertigo%22%5BClinical%20Features%5D%20OR%2053006%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_10044"><div><strong>Intellectual disability, mild</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>10044</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.">C0026106</a></dd><dt><span class="dotprefix"></span></dt><dd>Mental or Behavioral Dysfunction</dd></dl></div></div></div>
<div class="spaceAbove">Mild intellectual disability is defined as an intelligence quotient (IQ) in the range of 50-69.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/10044">Feature record</a> | <a href="/medgen?term=%22Intellectual%20disability%2C%20mild%22%5BClinical%20Features%5D%20OR%2010044%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_90932"><div><strong>Cognitive impairment</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>90932</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.">C0338656</a></dd><dt><span class="dotprefix"></span></dt><dd>Mental or Behavioral Dysfunction</dd></dl></div></div></div>
<div class="spaceAbove">Abnormal cognition is characterized by deficits in thinking, reasoning, or remembering.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/90932">Feature record</a> | <a href="/medgen?term=%22Cognitive%20impairment%22%5BClinical%20Features%5D%20OR%2090932%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_266071"><div><strong>Peripheral axonal neuropathy</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>266071</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.">C1263857</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">An abnormality characterized by disruption of the normal functioning of peripheral axons.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/266071">Feature record</a> | <a href="/medgen?term=%22Peripheral%20axonal%20neuropathy%22%5BClinical%20Features%5D%20OR%20266071%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_373109"><div><strong>White mater abnormalities in the posterior periventricular region</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>373109</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.">C1836525</a></dd><dt><span class="dotprefix"></span></dt><dd>Finding</dd></dl></div></div></div>
<div class="spaceAbove nowrap">See: <a href="/medgen/373109">Feature record</a> | <a href="/medgen?term=%22White%20mater%20abnormalities%20in%20the%20posterior%20periventricular%20region%22%5BClinical%20Features%5D%20OR%20373109%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_322937"><div><strong>Distal sensory impairment of all modalities</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>322937</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.">C1836527</a></dd><dt><span class="dotprefix"></span></dt><dd>Finding</dd></dl></div></div></div>
<div class="spaceAbove">Reduced ability to sense pain, temperature, touch, vibration stimuli in the distal regions of the extremities.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/322937">Feature record</a> | <a href="/medgen?term=%22Distal%20sensory%20impairment%20of%20all%20modalities%22%5BClinical%20Features%5D%20OR%20322937%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_332464"><div><strong>Axonal degeneration</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>332464</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.">C1837496</a></dd><dt><span class="dotprefix"></span></dt><dd>Finding</dd></dl></div></div></div>
<div class="spaceAbove nowrap">See: <a href="/medgen/332464">Feature record</a> | <a href="/medgen?term=%22Axonal%20degeneration%22%5BClinical%20Features%5D%20OR%20332464%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_335722"><div><strong>Distal sensory impairment</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>335722</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.">C1847584</a></dd><dt><span class="dotprefix"></span></dt><dd>Finding</dd></dl></div></div></div>
<div class="spaceAbove">An abnormal reduction in sensation in the distal portions of the extremities.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/335722">Feature record</a> | <a href="/medgen?term=%22Distal%20sensory%20impairment%22%5BClinical%20Features%5D%20OR%20335722%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_465269"><div><strong>Lacunar stroke</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>465269</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.">C3178801</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">A stroke related to a small infarct (2-20 mm in diameter) in the deep cerebral white matter, basal ganglia, or pons, that is presumed to result from the occlusion of a single small perforating artery supplying the subcortical areas of the brain.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/465269">Feature record</a> | <a href="/medgen?term=%22Lacunar%20stroke%22%5BClinical%20Features%5D%20OR%20465269%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_140883"><div><strong>Distal muscle weakness</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>140883</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.">C0427065</a></dd><dt><span class="dotprefix"></span></dt><dd>Finding</dd></dl></div></div></div>
<div class="spaceAbove">Reduced strength of the musculature of the distal extremities.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/140883">Feature record</a> | <a href="/medgen?term=%22Distal%20muscle%20weakness%22%5BClinical%20Features%5D%20OR%20140883%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_6155"><div><strong>Lymphedema</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>6155</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.">C0024236</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Localized fluid retention and tissue swelling caused by a compromised lymphatic system.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/6155">Feature record</a> | <a href="/medgen?term=%22Lymphedema%22%5BClinical%20Features%5D%20OR%206155%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_373112"><div><strong>Depressed nasal bridge</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>373112</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.">C1836542</a></dd><dt><span class="dotprefix"></span></dt><dd>Finding</dd></dl></div></div></div>
<div class="spaceAbove">Posterior positioning of the nasal root in relation to the overall facial profile for age.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/373112">Feature record</a> | <a href="/medgen?term=%22Depressed%20nasal%20bridge%22%5BClinical%20Features%5D%20OR%20373112%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_326567"><div><strong>Thick lower lip vermilion</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>326567</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.">C1839739</a></dd><dt><span class="dotprefix"></span></dt><dd>Finding</dd></dl></div></div></div>
<div class="spaceAbove">Increased thickness of the lower lip, leading to a prominent appearance of the lower lip. The height of the vermilion of the lower lip in the midline is more than 2 SD above the mean. Alternatively, an apparently increased height of the vermilion of the lower lip in the frontal view (subjective).</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/326567">Feature record</a> | <a href="/medgen?term=%22Thick%20lower%20lip%20vermilion%22%5BClinical%20Features%5D%20OR%20326567%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_335284"><div><strong>Coarse facial features</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>335284</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.">C1845847</a></dd><dt><span class="dotprefix"></span></dt><dd>Finding</dd></dl></div></div></div>
<div class="spaceAbove">Absence of fine and sharp appearance of brows, nose, lips, mouth, and chin, usually because of rounded and heavy features or thickened skin with or without thickening of subcutaneous and bony tissues.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/335284">Feature record</a> | <a href="/medgen?term=%22Coarse%20facial%20features%22%5BClinical%20Features%5D%20OR%20335284%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_8083"><div><strong>Fabry disease</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>8083</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.">C0002986</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Fabry disease is the most common of the lysosomal storage disorders and results from deficient activity of the enzyme alpha-galactosidase A (a-Gal A), leading to progressive lysosomal deposition of globotriaosylceramide and its derivatives in cells throughout the body. The classic form, occurring in males with less than 1% a-Gal A enzyme activity, usually has its onset in childhood or adolescence with periodic crises of severe pain in the extremities (acroparesthesia), the appearance of vascular cutaneous lesions (angiokeratomas), sweating abnormalities (anhidrosis, hypohidrosis, and rarely hyperhidrosis), characteristic corneal and lenticular opacities, and proteinuria. Gradual deterioration of kidney function to end-stage kidney disease (ESKD) usually occurs in men in the third to fifth decade. In middle age, most males successfully treated for ESKD develop cardiac and/or cerebrovascular disease, a major cause of morbidity and mortality. Heterozygous females typically have milder symptoms at a later age of onset than males. Rarely, females may be relatively asymptomatic throughout a normal life span or may have symptoms as severe as those observed in males with the classic phenotype. In contrast, late-onset forms occur in males with greater than 1% a-Gal A activity. Clinical manifestations include cardiac disease, which usually presents in the sixth to eighth decade with left ventricular hypertrophy, cardiomyopathy, arrhythmia, and proteinuria; kidney failure, associated with ESKD but without the skin lesions or pain; or cerebrovascular disease presenting as stroke or transient ischemic attack.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/8083">Feature record</a> | <a href="/medgen?term=%22Fabry%20disease%22%5BClinical%20Features%5D%20OR%208083%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_10680"><div><strong>Petechiae</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>10680</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.">C0031256</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Petechiae are pinpoint-sized reddish/purple spots, resembling a rash, that appear just under the skin or a mucous membrane when capillaries have ruptured and some superficial bleeding into the skin has happened. This term refers to an abnormally increased susceptibility to developing petechiae.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/10680">Feature record</a> | <a href="/medgen?term=%22Petechiae%22%5BClinical%20Features%5D%20OR%2010680%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_56250"><div><strong>Dry skin</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>56250</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.">C0151908</a></dd><dt><span class="dotprefix"></span></dt><dd>Sign or Symptom</dd></dl></div></div></div>
<div class="spaceAbove">Skin characterized by the lack of natural or normal moisture.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/56250">Feature record</a> | <a href="/medgen?term=%22Dry%20skin%22%5BClinical%20Features%5D%20OR%2056250%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_209030"><div><strong>Hyperkeratosis</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>209030</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.">C0870082</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Hyperkeratosis is thickening of the epidermis involving the outer layer of the skin, the stratum corneum, which is composed of large, polyhedral, plate-like envelopes filled with keratin which are the dead cells that have migrated up from the stratum granulosum.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/209030">Feature record</a> | <a href="/medgen?term=%22Hyperkeratosis%22%5BClinical%20Features%5D%20OR%20209030%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_347522"><div><strong>Lip telangiectasia</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>347522</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.">C1857697</a></dd><dt><span class="dotprefix"></span></dt><dd>Finding</dd></dl></div></div></div>
<div class="spaceAbove">Telangiectasia (that is, the presence of small dilated superficial blood vessels) of the lips.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/347522">Feature record</a> | <a href="/medgen?term=%22Lip%20telangiectasia%22%5BClinical%20Features%5D%20OR%20347522%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_870436"><div><strong>Telangiectasia of the oral mucosa</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>870436</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.">C4024882</a></dd><dt><span class="dotprefix"></span></dt><dd>Anatomical Abnormality</dd></dl></div></div></div>
<div class="spaceAbove">Telangiectasia (that is, the presence of small dilated superficial blood vessels) of the oral mucosa.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/870436">Feature record</a> | <a href="/medgen?term=%22Telangiectasia%20of%20the%20oral%20mucosa%22%5BClinical%20Features%5D%20OR%20870436%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_344487"><div><strong>Tortuosity of conjunctival vessels</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>344487</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.">C1855391</a></dd><dt><span class="dotprefix"></span></dt><dd>Finding</dd></dl></div></div></div>
<div class="spaceAbove">The presence of an increased number of twists and turns of the conjunctival blood vessels.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/344487">Feature record</a> | <a href="/medgen?term=%22Tortuosity%20of%20conjunctival%20vessels%22%5BClinical%20Features%5D%20OR%20344487%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 head or neck</span><ul><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_335284" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Coarse facial features</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_373112" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Depressed nasal bridge</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_326567" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Thick lower lip vermilion</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_6155" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Lymphedema</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_344487" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Tortuosity of conjunctival vessels</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_116067" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Aminoaciduria</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_373111" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Increased urinary O-linked sialopeptides</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_56250" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Dry skin</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_8083" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Fabry disease</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_209030" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Hyperkeratosis</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_347522" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Lip telangiectasia</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_10680" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Petechiae</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_870436" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Telangiectasia of the oral mucosa</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_140883" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Distal muscle weakness</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_332464" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Axonal degeneration</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_90932" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Cognitive impairment</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_335722" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Distal sensory impairment</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_322937" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Distal sensory impairment of all modalities</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_10044" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Intellectual disability, mild</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_465269" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Lacunar stroke</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_266071" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Peripheral axonal neuropathy</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_373109" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">White mater abnormalities in the posterior periventricular region</a></span></li></ul></li><li><span class="TLline">Ear malformation</span><ul><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_9164" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Sensorineural hearing loss disorder</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_53006" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Vertigo</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=C1836522[DISCUI]&amp;test_type=Clinical" ref="ncbi_uid=324539">C</a></span><span class="chiclet unavailable round" title="Research Tests">R</span><span class="chiclet Ocolor" title="OMIM"><a ref="ncbi_uid=324539" target="_blank" href="/omim/104170">O</a></span><span class="chiclet unavailable" title="GeneReviews">G</span><span class="chiclet Vcolor" title="ClinVar"><a target="_blank" href="/clinvar?LinkName=medgen_clinvar&amp;from_uid=324539" ref="ncbi_uid=324539">V</a></span></span><span class="TLline">Alpha-N-acetylgalactosaminidase deficiency type 2</span></li></ul></div></div></div></div></div><div id="tabMGEN"><div class="ds_tree"><ul><li><span class="TLline"><a href="/medgen/1842692" ref="tree=MeSH" title="MedGen record for Lysosomal disease with epilepsy">Lysosomal disease with epilepsy</a></span><ul><li><span class="TLline"><a href="/medgen/1845666" ref="tree=MeSH" title="MedGen record for Alpha-N-acetylgalactosaminidase deficiency">Alpha-N-acetylgalactosaminidase deficiency</a></span><ul><li><span class="matched_ds">Alpha-N-acetylgalactosaminidase deficiency type 2</span></li></ul></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=11306&amp;search=Disease_Classif_Simple&amp;new=1" class="ital bold">this link</a> to review classifications for <span class="ital">Alpha-N-acetylgalactosaminidase deficiency type 2</span> in Orphanet.</div></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">Diagnosis</h3>
<div class="nl"><a target="_blank" href="/pubmed/36752951">Analysis of urinary oligosaccharide excretion patterns by UHPLC/HRAM mass spectrometry for screening of lysosomal storage disorders.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Hagemeijer MC,
van den Bosch JC,
Bongaerts M,
Jacobs EH,
van den Hout JMP,
Oussoren E,
Ruijter GJG</span><br />
<span class="medgenPMjournal">J Inherit Metab Dis</span>
2023 Mar;46(2):206-219.
Epub 2023 Feb 28
doi: 10.1002/jimd.12597.
<span class="bold">PMID: </span><a href="/pubmed/36752951" target="_blank">36752951</a></div>
<div class="nl"><a target="_blank" href="/pubmed/25243357">Automated chip-nanoelectrospray mass spectrometry for glycourinomics in Schindler disease type I.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Sarbu M,
Robu A,
Peter-Katalinić J,
Zamfir AD</span><br />
<span class="medgenPMjournal">Carbohydr Res</span>
2014 Oct 29;398:90-100.
Epub 2014 Sep 6
doi: 10.1016/j.carres.2014.08.014.
<span class="bold">PMID: </span><a href="/pubmed/25243357" target="_blank">25243357</a></div>
<div class="nl"><a target="_blank" href="/pubmed/24788891">A capillary electrophoresis procedure for the screening of oligosaccharidoses and related diseases.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Casado M,
Altimira L,
Montero R,
Castejón E,
Nascimento A,
Pérez-Dueñas B,
Ormazabal A,
Artuch R</span><br />
<span class="medgenPMjournal">Anal Bioanal Chem</span>
2014 Jul;406(18):4337-43.
Epub 2014 May 2
doi: 10.1007/s00216-014-7832-6.
<span class="bold">PMID: </span><a href="/pubmed/24788891" target="_blank">24788891</a></div>
<div class="nl"><a target="_blank" href="/pubmed/7707696">Mild phenotypic expression of alpha-N-acetylgalactosaminidase deficiency in two adult siblings.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Chabás A,
Coll MJ,
Aparicio M,
Rodriguez Diaz E</span><br />
<span class="medgenPMjournal">J Inherit Metab Dis</span>
1994;17(6):724-31.
doi: 10.1007/BF00712015.
<span class="bold">PMID: </span><a href="/pubmed/7707696" target="_blank">7707696</a></div>
<div><a target="_blank" href="https://pubmed.ncbi.nlm.nih.gov/?term=%22Alpha-N-acetylgalactosaminidase%20deficiency%20type%202%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 (4)</a></div><h3 class="subhead">Clinical prediction guides</h3>
<div class="nl"><a target="_blank" href="/pubmed/36752951">Analysis of urinary oligosaccharide excretion patterns by UHPLC/HRAM mass spectrometry for screening of lysosomal storage disorders.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Hagemeijer MC,
van den Bosch JC,
Bongaerts M,
Jacobs EH,
van den Hout JMP,
Oussoren E,
Ruijter GJG</span><br />
<span class="medgenPMjournal">J Inherit Metab Dis</span>
2023 Mar;46(2):206-219.
Epub 2023 Feb 28
doi: 10.1002/jimd.12597.
<span class="bold">PMID: </span><a href="/pubmed/36752951" target="_blank">36752951</a></div>
<div class="nl"><a target="_blank" href="/pubmed/24788891">A capillary electrophoresis procedure for the screening of oligosaccharidoses and related diseases.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Casado M,
Altimira L,
Montero R,
Castejón E,
Nascimento A,
Pérez-Dueñas B,
Ormazabal A,
Artuch R</span><br />
<span class="medgenPMjournal">Anal Bioanal Chem</span>
2014 Jul;406(18):4337-43.
Epub 2014 May 2
doi: 10.1007/s00216-014-7832-6.
<span class="bold">PMID: </span><a href="/pubmed/24788891" target="_blank">24788891</a></div>
<div class="nl"><a target="_blank" href="/pubmed/8782044">Human alpha-N-acetylgalactosaminidase (alpha-NAGA) deficiency: new mutations and the paradox between genotype and phenotype.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Keulemans JL,
Reuser AJ,
Kroos MA,
Willemsen R,
Hermans MM,
van den Ouweland AM,
de Jong JG,
Wevers RA,
Renier WO,
Schindler D,
Coll MJ,
Chabas A,
Sakuraba H,
Suzuki Y,
van Diggelen OP</span><br />
<span class="medgenPMjournal">J Med Genet</span>
1996 Jun;33(6):458-64.
doi: 10.1136/jmg.33.6.458.
<span class="bold">PMID: </span><a href="/pubmed/8782044" target="_blank">8782044</a><a href="/pmc/articles/PMC1050630" target="_blank" class="PubMedFree">Free PMC Article</a></div>
<div><a target="_blank" href="https://pubmed.ncbi.nlm.nih.gov/?term=%22Alpha-N-acetylgalactosaminidase%20deficiency%20type%202%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 (3)</a></div></div>
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<h2 class="offscreen_noflow">Supplemental Content</h2>
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<!-- MedGen supplemental column starts here -->
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<div class="portlet_content ln"><ul id="my-toc"></ul></div>
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<div class="portlet mgSection" id="ID_106">
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<div class="portlet_content ln"><ul><li><a href="/gtr/tests?term=C1836522%5bDISCUI%5d&amp;filter=method%3A2%5F8" target="_blank">Deletion/duplication analysis (15)</a></li>
<li><a href="/gtr/tests?term=C1836522%5bDISCUI%5d&amp;filter=method%3A2%5F7" target="_blank">Sequence analysis of the entire coding region (16)</a></li>
<li><a href="/gtr/tests?term=C1836522%5bDISCUI%5d&amp;filter=method%3A2%5F19" target="_blank">Targeted variant analysis (2)</a></li>
<li class="portletSeeAll portletSeeAllPad"><total><a href="/gtr/tests?term=C1836522%5bDISCUI%5d" target="_blank">See all (18)</a></total></li>
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<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=609242" target="_blank">OMIM</a></li><li><a href="http://www.orpha.net/consor/cgi-bin/OC_Exp.php?Expert=79280" target="_blank">Orphanet</a></li><li><a href="https://clinicaltrials.gov/search?cond=Alpha-N-acetylgalactosaminidase%20deficiency%20type%202" target="_blank">ClinicalTrials.gov</a></li></ul></div>
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<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=104170" target="_blank">OMIM</a></li><li><a href="/clinvar/?term=4668[geneid]" target="_blank">View NAGA variations in ClinVar</a></li><li><a href="/nuccore/219521913" target="_blank">RefSeqGene</a></li><li><a href="https://catalog.coriell.org/Search?q=609242" target="_blank">Coriell Institute for Medical Research</a></li></ul></div>
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<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/Kanzaki+disease/3950" target="_blank">Genetic Alliance</a></li><li><a href="https://www.malacards.org/card/kanzaki_disease" target="_blank">MalaCards</a></li><li><a href="https://vsearch.nlm.nih.gov/vivisimo/cgi-bin/query-meta?v:project=medlineplus&amp;query=Alpha-N-acetylgalactosaminidase%20deficiency%20type%202" target="_blank">MedlinePlus</a></li><li><a href="https://medlineplus.gov/genetics/condition/schindler-disease" target="_blank">MedlinePlusGenetics (GHR)</a></li><li><a href="https://rarediseases.info.nih.gov/diseases/9161/disease" target="_blank">NCATS Office of Rare Diseases Research (GARD)</a></li></ul></div>
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<a href="/pubmed?term=Alpha-N-acetylgalactosaminidase%20deficiency%20type%202%20AND%20humans[mesh]%20AND%20review[publication%20type]" ref="ncbi_uid=&amp;discoId=gtr_reviews&amp;linkpos=2&amp;linkpostotal=2" target="_blank">Reviews in PubMed</a>
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