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<meta name="keywords" content="C0398791, at v1, at-v1, ataxia telangiectasia variant 1, ataxia telangiectasia variant v1, ataxia-telangiectasia variant 1, ataxia-telangiectasia variant 1s, ataxia-telangiectasia variant v1, ataxia-telangiectasia variant v1s, ataxia-telangiectasia variant v2, ataxia-telangiectasia, variant 1, bbs, berlin breakage syndrome, breakage syndrome, berlin, breakage syndrome, nijmegen, disease or syndrome, immunodeficiency, microcephaly with normal intelligence, immunodeficiency, microcephaly, and chromosomal instability, immunodeficiency-microcephaly-chromosomal instability syndrome, microcephaly immunodeficiency lymphoreticuloma, microcephaly with normal intelligence immunodeficiency and lymphoreticular malignancies, microcephaly with normal intelligence, immunodeficiency, and lymphoreticular malignancies, microcephaly, normal intelligence and immunodeficiency, microcephaly-immunodeficiency-lymphoid malignancy syndrome, microcephaly-immunodeficiency-lymphoreticuloma syndrome, nbn, nbs, nbs - nijmegen breakage syndrome, nijmegen breakage syndrome, nonsyndromal microcephaly autosomal recessive with normal intelligence, nonsyndromal microcephaly, autosomal recessive, with normal intelligence, seemanova syndrome, seemanova syndrome 2, seemanova syndrome ii, seemanova syndrome type 2, syndrome, berlin breakage, syndrome, nijmegen breakage, variant 1s, ataxia-telangiectasia, variant v1, ataxia-telangiectasia, variant v1s, ataxia-telangiectasia, 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="Nijmegen breakage syndrome (NBS) is characterized by progressive microcephaly, early growth deficiency that improves with age, recurrent respiratory infections, an increased risk for malignancy (primarily lymphoma), and premature ovarian failure in females. Developmental milestones are attained at the usual time during the first year; however, borderline delays in development and hyperactivity may be observed in early childhood. Intellectual abilities tend to decline over time. Recurrent pneumonia and bronchitis may result in respiratory failure and early death. Other reported malignancies include solid tumors (e.g., medulloblastoma, glioma, rhabdomyosarcoma)." /><meta name="robots" content="index,nofollow,noarchive" />
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<!--
UID=140771
ConceptID=C0398791
-->
<!--imgCountBooks = 0--><h1 class="medgenTitle"><div class="MedGenTitleText">Microcephaly, normal intelligence and immunodeficiency<span class="h1sub">(NBS)</span></div></h1><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>140771</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:">C0398791</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>Ataxia telangiectasia variant V1; BERLIN BREAKAGE SYNDROME; Immunodeficiency, microcephaly with normal intelligence; IMMUNODEFICIENCY, MICROCEPHALY, AND CHROMOSOMAL INSTABILITY; Microcephaly with normal intelligence immunodeficiency and lymphoreticular malignancies; NBS; Nijmegen breakage syndrome; Nonsyndromal microcephaly autosomal recessive with normal intelligence; Seemanova syndrome 2; SEEMANOVA SYNDROME II</td></tr>
<tr><td><span class="bold">SNOMED CT: </span></td>
<td>Microcephaly, normal intelligence and immunodeficiency (234638009); Nijmegen breakage syndrome (234638009); NBS - Nijmegen breakage syndrome (234638009); Seemanova syndrome II (234638009)</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="NBN - ID: 4683 - NCBI Gene" href="/gene/4683" class="medgenPMinfo">NBN</a> (8q21.3)</td></tr>
<tr><td colspan="2" class="small"> </td></tr><tr><td>Monarch Initiative:</td>
<td><a href="https://monarchinitiative.org/disease/MONDO:0009623" target="_blank">MONDO:0009623</a></td></tr>
<tr><td>OMIM<span class="superscript">®</span>:</td>
<td><a href="https://omim.org/entry/251260" target="_blank">251260</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=647">ORPHA647</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/NBK1176" target="_blank">Nijmegen Breakage Syndrome</a></div><div>Nijmegen breakage syndrome (NBS) is characterized by progressive microcephaly, early growth deficiency that improves with age, recurrent respiratory infections, an increased risk for malignancy (primarily lymphoma), and premature ovarian failure in females. Developmental milestones are attained at the usual time during the first year; however, borderline delays in development and hyperactivity may be observed in early childhood. Intellectual abilities tend to decline over time. Recurrent pneumonia and bronchitis may result in respiratory failure and early death. Other reported malignancies include solid tumors (e.g., medulloblastoma, glioma, rhabdomyosarcoma). [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/NBK1176#nijmegen.Summary" target="NBK1176">Summary</a>  |  <a class="medgenPMinfo" href="/books/NBK1176#nijmegen.Diagnosis" target="NBK1176">Diagnosis</a>  |  <a class="medgenPMinfo" href="/books/NBK1176#nijmegen.Clinical_Characteristics" target="NBK1176">Clinical Characteristics</a>  |  <a class="medgenPMinfo" href="/books/NBK1176#nijmegen.Genetically_Related_Disorders" target="NBK1176">Genetically Related Disorders</a>  |  <a class="medgenPMinfo" href="/books/NBK1176#nijmegen.Differential_Diagnosis" target="NBK1176">Differential Diagnosis</a>  |  <a class="medgenPMinfo" href="/books/NBK1176#nijmegen.Management" target="NBK1176">Management</a>  |  <a class="medgenPMinfo" href="/books/NBK1176#nijmegen.Genetic_Counseling" target="NBK1176">Genetic Counseling</a>  |  <a class="medgenPMinfo" href="/books/NBK1176#nijmegen.Resources" target="NBK1176">Resources</a>  |  <a class="medgenPMinfo" href="/books/NBK1176#nijmegen.Molecular_Genetics" target="NBK1176">Molecular Genetics</a>  |  <a class="medgenPMinfo" href="/books/NBK1176#nijmegen.Chapter_Notes" target="NBK1176">Chapter Notes</a>  |  <a class="medgenPMinfo" href="/books/NBK1176#nijmegen.References" target="NBK1176">References</a></div><div class="spaceAbove"><strong>Authors:</strong><br />
Raymonda Varon  |  Ilja Demuth  |  Krystyna H Chrzanowska   <a href="/books/NBK1176" target="NBK1176" title="NCBI Bookshelf: Nijmegen Breakage Syndrome">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 />The Nijmegen breakage syndrome (NBS) and the phenotypically indistinguishable Berlin breakage syndrome (BBS) are autosomal recessive chromosomal instability syndromes characterized by microcephaly, growth retardation, immunodeficiency, and predisposition to cancer. Ataxia-telangiectasia variant-1 is the designation applied to the Nijmegen breakage syndrome and AT variant-2 is the designation for the Berlin breakage syndrome, which differ only in complementation studies. Cells from NBS/BBS patients are hypersensitive to ionizing radiation with cytogenetic features indistinguishable from those of ataxia-telangiectasia (AT; 208900), but NBS/BBS patients have a distinct clinical phenotype.&#13;
The clinical features of LIG4 syndrome (606593), caused by mutation in the LIG4 gene (601837), resemble those of NBS.  <a target="_blank" href="http://www.omim.org/entry/251260">http://www.omim.org/entry/251260</a></div><div class="mgSection"><strong>From MedlinePlus Genetics</strong><br />Nijmegen breakage syndrome is a condition characterized by short stature, an unusually small head size (microcephaly), distinctive facial features, recurrent respiratory tract infections, an increased risk of cancer, intellectual disability, and other health problems.<br /><br />People with this condition typically grow slowly during infancy and early childhood. After this period of slow growth, affected individuals grow at a normal rate but remain shorter than their peers. Microcephaly is apparent from birth in the majority of affected individuals. The head does not grow at the same rate as the rest of the body, so it appears that the head is getting smaller as the body grows (progressive microcephaly). Individuals with Nijmegen breakage syndrome have distinctive facial features that include a sloping forehead, a prominent nose, large ears, a small jaw, and outside corners of the eyes that point upward (upslanting palpebral fissures). These facial features typically become apparent by age 3.<br /><br />People with Nijmegen breakage syndrome have a malfunctioning immune system (immunodeficiency) with abnormally low levels of immune system proteins called immunoglobulin G (IgG) and immunoglobulin A (IgA). Affected individuals also have a shortage of immune system cells called T cells. The immune system abnormalities increase susceptibility to recurrent infections, such as bronchitis, pneumonia, sinusitis, and other infections affecting the upper respiratory tract and lungs.<br /><br />Individuals with Nijmegen breakage syndrome have an increased risk of developing cancer, most commonly a cancer of immune system cells called non-Hodgkin lymphoma. About half of individuals with Nijmegen breakage syndrome develop non-Hodgkin lymphoma, usually before age 15. Other cancers seen in people with Nijmegen breakage syndrome include brain tumors such as medulloblastoma and glioma, and a cancer of muscle tissue called rhabdomyosarcoma. People with Nijmegen breakage syndrome are 50 times more likely to develop cancer than people without this condition.<br /><br />Intellectual development is normal in most people with this condition for the first year or two of life, but then development becomes delayed. Skills decline over time, and most affected children and adults have mild to moderate intellectual disability.<br /><br />Most affected woman have premature ovarian failure and do not begin menstruation by age 16 (primary amenorrhea) or have infrequent menstrual periods. Most women with Nijmegen breakage syndrome are unable to have biological children (infertile).  <a target="_blank" href="https://medlineplus.gov/genetics/condition/nijmegen-breakage-syndrome">https://medlineplus.gov/genetics/condition/nijmegen-breakage-syndrome</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_44223"><div><strong>Lymphoma</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>44223</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.">C0024299</a></dd><dt><span class="dotprefix"></span></dt><dd>Neoplastic Process</dd></dl></div></div></div>
<div class="spaceAbove">A cancer originating in lymphocytes and presenting as a solid tumor of lymhpoid cells.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/44223">Feature record</a> | <a href="/medgen?term=%22Lymphoma%22%5BClinical%20Features%5D%20OR%2044223%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_20561"><div><strong>Rhabdomyosarcoma</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>20561</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.">C0035412</a></dd><dt><span class="dotprefix"></span></dt><dd>Neoplastic Process</dd></dl></div></div></div>
<div class="spaceAbove">A malignant soft tissue tumor which develops from cells of striated muscle. It is the most common form of tumor found in children and adolescents.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/20561">Feature record</a> | <a href="/medgen?term=%22Rhabdomyosarcoma%22%5BClinical%20Features%5D%20OR%2020561%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_42531"><div><strong>Hydronephrosis</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>42531</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.">C0020295</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Severe distention of the kidney with dilation of the renal pelvis and calices.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/42531">Feature record</a> | <a href="/medgen?term=%22Hydronephrosis%22%5BClinical%20Features%5D%20OR%2042531%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_9963"><div><strong>Premature ovarian insufficiency</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>9963</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.">C0025322</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Amenorrhea due to loss of ovarian function before the age of 40. Primary ovarian insuficiency (POI) is a state of female hypergonadotropic hypogonadism. It can manifest as primary amenorrhea with onset before menarche or secondary amenorrhea.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/9963">Feature record</a> | <a href="/medgen?term=%22Premature%20ovarian%20insufficiency%22%5BClinical%20Features%5D%20OR%209963%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_120466"><div><strong>Recurrent urinary tract infections</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>120466</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.">C0262655</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Repeated infections of the urinary tract.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/120466">Feature record</a> | <a href="/medgen?term=%22Recurrent%20urinary%20tract%20infections%22%5BClinical%20Features%5D%20OR%20120466%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_374376"><div><strong>Sandal gap</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>374376</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.">C1840069</a></dd><dt><span class="dotprefix"></span></dt><dd>Finding</dd></dl></div></div></div>
<div class="spaceAbove">A widely spaced gap between the first toe (the great toe) and the second toe.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/374376">Feature record</a> | <a href="/medgen?term=%22Sandal%20gap%22%5BClinical%20Features%5D%20OR%20374376%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_1645640"><div><strong>2-3 toe syndactyly</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>1645640</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.">C4551570</a></dd><dt><span class="dotprefix"></span></dt><dd>Congenital Abnormality</dd></dl></div></div></div>
<div class="spaceAbove">Syndactyly with fusion of toes two and three.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/1645640">Feature record</a> | <a href="/medgen?term=%222-3%20toe%20syndactyly%22%5BClinical%20Features%5D%20OR%201645640%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_4693"><div><strong>Fetal growth restriction</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>4693</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.">C0015934</a></dd><dt><span class="dotprefix"></span></dt><dd>Pathologic Function</dd></dl></div></div></div>
<div class="spaceAbove">An abnormal restriction of fetal growth with fetal weight below the tenth percentile for gestational age.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/4693">Feature record</a> | <a href="/medgen?term=%22Fetal%20growth%20restriction%22%5BClinical%20Features%5D%20OR%204693%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_87607"><div><strong>Short stature</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>87607</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.">C0349588</a></dd><dt><span class="dotprefix"></span></dt><dd>Finding</dd></dl></div></div></div>
<div class="spaceAbove">A height below that which is expected according to age and gender norms. Although there is no universally accepted definition of short stature, many refer to "short stature" as height more than 2 standard deviations below the mean for age and gender (or below the 3rd percentile for age and gender dependent norms).</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/87607">Feature record</a> | <a href="/medgen?term=%22Short%20stature%22%5BClinical%20Features%5D%20OR%2087607%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_1997"><div><strong>Imperforate anus</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>1997</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.">C0003466</a></dd><dt><span class="dotprefix"></span></dt><dd>Congenital Abnormality</dd></dl></div></div></div>
<div class="spaceAbove">Congenital absence of the anus, i.e., the opening at the bottom end of the intestinal tract.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/1997">Feature record</a> | <a href="/medgen?term=%22Imperforate%20anus%22%5BClinical%20Features%5D%20OR%201997%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_82644"><div><strong>Anal stenosis</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>82644</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.">C0262374</a></dd><dt><span class="dotprefix"></span></dt><dd>Anatomical Abnormality</dd></dl></div></div></div>
<div class="spaceAbove">Abnormal narrowing of the anal opening.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/82644">Feature record</a> | <a href="/medgen?term=%22Anal%20stenosis%22%5BClinical%20Features%5D%20OR%2082644%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_343135"><div><strong>Recurrent infection of the gastrointestinal tract</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>343135</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.">C1854495</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Recurrent infection of the gastrointestinal tract.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/343135">Feature record</a> | <a href="/medgen?term=%22Recurrent%20infection%20of%20the%20gastrointestinal%20tract%22%5BClinical%20Features%5D%20OR%20343135%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_488785"><div><strong>Macrotia</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>488785</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.">C0152421</a></dd><dt><span class="dotprefix"></span></dt><dd>Congenital Abnormality</dd></dl></div></div></div>
<div class="spaceAbove">Median longitudinal ear length greater than two standard deviations above the mean and median ear width greater than two standard deviations above the mean (objective); or, apparent increase in length and width of the pinna (subjective).</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/488785">Feature record</a> | <a href="/medgen?term=%22Macrotia%22%5BClinical%20Features%5D%20OR%20488785%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_9030"><div><strong>Glioma</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>9030</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.">C0017638</a></dd><dt><span class="dotprefix"></span></dt><dd>Neoplastic Process</dd></dl></div></div></div>
<div class="spaceAbove">The presence of a glioma, which is a neoplasm of the central nervous system originating from a glial cell (astrocytes or oligodendrocytes).</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/9030">Feature record</a> | <a href="/medgen?term=%22Glioma%22%5BClinical%20Features%5D%20OR%209030%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_7517"><div><strong>Medulloblastoma</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>7517</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.">C0025149</a></dd><dt><span class="dotprefix"></span></dt><dd>Neoplastic Process</dd></dl></div></div></div>
<div class="spaceAbove">Medulloblastoma is the most common brain tumor in children. It accounts for 16% of all pediatric brain tumors, and 40% of all cerebellar tumors in childhood are medulloblastoma. Medulloblastoma occurs bimodally, with peak incidences between 3 and 4 years and 8 and 9 years of age. Approximately 10 to 15% of medulloblastomas are diagnosed in infancy. Medulloblastoma accounts for less than 1% of central nervous system (CNS) tumors in adults, with highest incidence in adults 20 to 34 years of age. In 1 to 2% of patients, medulloblastoma is associated with Gorlin syndrome (109400), a nevoid basal carcinoma syndrome. Medulloblastoma also occurs in up to 40% of patients with Turcot syndrome (see 276300). Medulloblastoma is thought to arise from neural stem cell precursors in the granular cell layer of the cerebellum. Standard treatment includes surgery, chemotherapy, and, depending on the age of the patient, radiation therapy (Crawford et al., 2007).&#13; Millard and De Braganca (2016) reviewed the histopathologic variants and molecular subgroups of medulloblastoma. Pretreatment prognosis of medulloblastoma has been refined by histopathologic subclassification into the following variants: large-cell medulloblastoma, anaplastic medulloblastoma, desmoplastic/nodular medulloblastoma, and medulloblastoma with extensive nodularity (MBEN). The latter 2 groups have been shown to have a significantly superior prognosis as compared to the large cell and anaplastic groups in young children. At the molecular level, medulloblastomas have been categorized into the following subgroups: wingless (WNT), sonic hedgehog (SHH), group 3, and group 4. Each subgroup is characterized by a unique set of genetics and gene expression as well as demographic and clinical features.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/7517">Feature record</a> | <a href="/medgen?term=%22Medulloblastoma%22%5BClinical%20Features%5D%20OR%207517%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_17999"><div><strong>Neurodegeneration</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>17999</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.">C0027746</a></dd><dt><span class="dotprefix"></span></dt><dd>Cell or Molecular Dysfunction</dd></dl></div></div></div>
<div class="spaceAbove">Progressive loss of neural cells and tissue.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/17999">Feature record</a> | <a href="/medgen?term=%22Neurodegeneration%22%5BClinical%20Features%5D%20OR%2017999%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_98406"><div><strong>Hyperactivity</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>98406</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.">C0424295</a></dd><dt><span class="dotprefix"></span></dt><dd>Finding</dd></dl></div></div></div>
<div class="spaceAbove">Hyperactivity is a condition characterized by constant and unusually high levels of activity, even in situations where it is deemed inappropriate.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/98406">Feature record</a> | <a href="/medgen?term=%22Hyperactivity%22%5BClinical%20Features%5D%20OR%2098406%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_105318"><div><strong>Delayed speech and language development</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>105318</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.">C0454644</a></dd><dt><span class="dotprefix"></span></dt><dd>Finding</dd></dl></div></div></div>
<div class="spaceAbove">A degree of language development that is significantly below the norm for a child of a specified age.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/105318">Feature record</a> | <a href="/medgen?term=%22Delayed%20speech%20and%20language%20development%22%5BClinical%20Features%5D%20OR%20105318%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_52737"><div><strong>Thrombocytopenia</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>52737</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.">C0040034</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">A reduction in the number of circulating thrombocytes.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/52737">Feature record</a> | <a href="/medgen?term=%22Thrombocytopenia%22%5BClinical%20Features%5D%20OR%2052737%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_7480"><div><strong>Mastoiditis</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>7480</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.">C0024904</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Inflammation of the mucosal lining of the mastoid antrum and mastoid air cell system of the mastoid process.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/7480">Feature record</a> | <a href="/medgen?term=%22Mastoiditis%22%5BClinical%20Features%5D%20OR%207480%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_44428"><div><strong>Micrognathia</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>44428</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.">C0025990</a></dd><dt><span class="dotprefix"></span></dt><dd>Congenital Abnormality</dd></dl></div></div></div>
<div class="spaceAbove">Developmental hypoplasia of the mandible.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/44428">Feature record</a> | <a href="/medgen?term=%22Micrognathia%22%5BClinical%20Features%5D%20OR%2044428%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_346975"><div><strong>Malar prominence</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>346975</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.">C1858732</a></dd><dt><span class="dotprefix"></span></dt><dd>Finding</dd></dl></div></div></div>
<div class="spaceAbove">Prominence of the malar process of the maxilla and infraorbital area appreciated in profile and from in front of the face.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/346975">Feature record</a> | <a href="/medgen?term=%22Malar%20prominence%22%5BClinical%20Features%5D%20OR%20346975%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_1644158"><div><strong>Microcephaly</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>1644158</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.">C4551563</a></dd><dt><span class="dotprefix"></span></dt><dd>Finding</dd></dl></div></div></div>
<div class="spaceAbove">Head circumference below 2 standard deviations below the mean for age and gender.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/1644158">Feature record</a> | <a href="/medgen?term=%22Microcephaly%22%5BClinical%20Features%5D%20OR%201644158%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_14234"><div><strong>Bronchiectasis</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>14234</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.">C0006267</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Persistent abnormal dilatation of the bronchi owing to localized and irreversible destruction and widening of the large airways.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/14234">Feature record</a> | <a href="/medgen?term=%22Bronchiectasis%22%5BClinical%20Features%5D%20OR%2014234%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_195802"><div><strong>Recurrent pneumonia</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>195802</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.">C0694550</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">An increased susceptibility to pneumonia as manifested by a history of recurrent episodes of pneumonia.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/195802">Feature record</a> | <a href="/medgen?term=%22Recurrent%20pneumonia%22%5BClinical%20Features%5D%20OR%20195802%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_148159"><div><strong>Recurrent bronchitis</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>148159</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.">C0741796</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">An increased susceptibility to bronchitis as manifested by a history of recurrent bronchitis.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/148159">Feature record</a> | <a href="/medgen?term=%22Recurrent%20bronchitis%22%5BClinical%20Features%5D%20OR%20148159%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_1918"><div><strong>Autoimmune hemolytic anemia</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>1918</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.">C0002880</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">An autoimmune form of hemolytic anemia.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/1918">Feature record</a> | <a href="/medgen?term=%22Autoimmune%20hemolytic%20anemia%22%5BClinical%20Features%5D%20OR%201918%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_41679"><div><strong>Dysgammaglobulinemia</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>41679</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.">C0013374</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Selective deficiency of one or more, but not all, classes of immunoglobulins.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/41679">Feature record</a> | <a href="/medgen?term=%22Dysgammaglobulinemia%22%5BClinical%20Features%5D%20OR%2041679%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_20772"><div><strong>Sinusitis</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>20772</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.">C0037199</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Inflammation of the paranasal sinuses owing to a viral, bacterial, or fungal infection, allergy, or an autoimmune reaction.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/20772">Feature record</a> | <a href="/medgen?term=%22Sinusitis%22%5BClinical%20Features%5D%20OR%2020772%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_155436"><div><strong>Recurrent otitis media</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>155436</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.">C0747085</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Increased susceptibility to otitis media, as manifested by recurrent episodes of otitis media.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/155436">Feature record</a> | <a href="/medgen?term=%22Recurrent%20otitis%20media%22%5BClinical%20Features%5D%20OR%20155436%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_340780"><div><strong>B lymphocytopenia</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>340780</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.">C1855067</a></dd><dt><span class="dotprefix"></span></dt><dd>Finding</dd></dl></div></div></div>
<div class="spaceAbove">An abnormal decrease from the normal count of B cells.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/340780">Feature record</a> | <a href="/medgen?term=%22B%20lymphocytopenia%22%5BClinical%20Features%5D%20OR%20340780%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_419385"><div><strong>T lymphocytopenia</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>419385</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.">C2931322</a></dd><dt><span class="dotprefix"></span></dt><dd>Finding</dd></dl></div></div></div>
<div class="spaceAbove">An abnormally low count of T cells.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/419385">Feature record</a> | <a href="/medgen?term=%22T%20lymphocytopenia%22%5BClinical%20Features%5D%20OR%20419385%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_3395"><div><strong>Choanal atresia</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>3395</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.">C0008297</a></dd><dt><span class="dotprefix"></span></dt><dd>Congenital Abnormality</dd></dl></div></div></div>
<div class="spaceAbove">Absence or abnormal closure of the choana (the posterior nasal aperture). Most embryologists believe that posterior choanal atresia results from a failure of rupture between the 35th and 38th day of fetal life of the partition which separates the bucconasal or buccopharyngeal membranes. The resultant choanal atresia may be unilateral or bilateral, bony or membranous, complete or incomplete. In over 90 per cent of cases the obstruction is bony, while in the remainder it is membranous. The bony type of atresia is commonly located 1-2 mm. anterior to the posterior edge of the hard palate, and the osseous septum varies in thickness from 1 to 10 mm. In the membranous form of choanal atresia the obstruction usually occurs further posteriorly. In approximately one third of cases the atresia is bilateral.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/3395">Feature record</a> | <a href="/medgen?term=%22Choanal%20atresia%22%5BClinical%20Features%5D%20OR%203395%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_40327"><div><strong>Cleft upper lip</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>40327</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.">C0008924</a></dd><dt><span class="dotprefix"></span></dt><dd>Congenital Abnormality</dd></dl></div></div></div>
<div class="spaceAbove">A gap or groove in the upper lip. This is a congenital defect resulting from nonfusion of tissues of the lip during embryonal development.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/40327">Feature record</a> | <a href="/medgen?term=%22Cleft%20upper%20lip%22%5BClinical%20Features%5D%20OR%2040327%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_98390"><div><strong>Upslanted palpebral fissure</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>98390</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.">C0423109</a></dd><dt><span class="dotprefix"></span></dt><dd>Finding</dd></dl></div></div></div>
<div class="spaceAbove">The palpebral fissure inclination is more than two standard deviations above the mean for age (objective); or, the inclination of the palpebral fissure is greater than typical for age.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/98390">Feature record</a> | <a href="/medgen?term=%22Upslanted%20palpebral%20fissure%22%5BClinical%20Features%5D%20OR%2098390%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_151862"><div><strong>Epicanthus</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>151862</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.">C0678230</a></dd><dt><span class="dotprefix"></span></dt><dd>Congenital Abnormality</dd></dl></div></div></div>
<div class="spaceAbove">Epicanthus is a condition in which a fold of skin stretches from the upper to the lower eyelid, partially covering the inner canthus. Usher (1935) noted that epicanthus is a normal finding in the fetus of all races. Epicanthus also occurs in association with hereditary ptosis (110100).</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/151862">Feature record</a> | <a href="/medgen?term=%22Epicanthus%22%5BClinical%20Features%5D%20OR%20151862%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_374311"><div><strong>Deep philtrum</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>374311</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.">C1839797</a></dd><dt><span class="dotprefix"></span></dt><dd>Finding</dd></dl></div></div></div>
<div class="spaceAbove">Accentuated, prominent philtral ridges giving rise to an exaggerated groove in the midline between the nasal base and upper vermillion border.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/374311">Feature record</a> | <a href="/medgen?term=%22Deep%20philtrum%22%5BClinical%20Features%5D%20OR%20374311%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_326583"><div><strong>Long nose</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>326583</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.">C1839798</a></dd><dt><span class="dotprefix"></span></dt><dd>Finding</dd></dl></div></div></div>
<div class="spaceAbove">Distance from nasion to subnasale more than two standard deviations above the mean, or alternatively, an apparently increased length from the nasal root to the nasal base.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/326583">Feature record</a> | <a href="/medgen?term=%22Long%20nose%22%5BClinical%20Features%5D%20OR%20326583%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_346640"><div><strong>Sloping forehead</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>346640</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.">C1857679</a></dd><dt><span class="dotprefix"></span></dt><dd>Finding</dd></dl></div></div></div>
<div class="spaceAbove">Inclination of the anterior surface of the forehead from the vertical more than two standard deviations above the mean (objective); or apparently excessive posterior sloping of the forehead in a lateral view.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/346640">Feature record</a> | <a href="/medgen?term=%22Sloping%20forehead%22%5BClinical%20Features%5D%20OR%20346640%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_756015"><div><strong>Cleft palate</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>756015</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.">C2981150</a></dd><dt><span class="dotprefix"></span></dt><dd>Congenital Abnormality</dd></dl></div></div></div>
<div class="spaceAbove">Cleft palate is a developmental defect of the palate resulting from a failure of fusion of the palatine processes and manifesting as a separation of the roof of the mouth (soft and hard palate).</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/756015">Feature record</a> | <a href="/medgen?term=%22Cleft%20palate%22%5BClinical%20Features%5D%20OR%20756015%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_113157"><div><strong>Cafe-au-lait spot</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>113157</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.">C0221263</a></dd><dt><span class="dotprefix"></span></dt><dd>Finding</dd></dl></div></div></div>
<div class="spaceAbove">Cafe-au-lait spots are hyperpigmented lesions that can vary in color from light brown to dark brown with smooth borders and having a size of 1.5 cm or more in adults and 0.5 cm or more in children.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/113157">Feature record</a> | <a href="/medgen?term=%22Cafe-au-lait%20spot%22%5BClinical%20Features%5D%20OR%20113157%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_66780"><div><strong>Conjunctival telangiectasia</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>66780</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.">C0239105</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">The presence of small (ca. 0.5-1.0 mm) dilated blood vessels near the surface of the mucous membranes of the conjunctiva.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/66780">Feature record</a> | <a href="/medgen?term=%22Conjunctival%20telangiectasia%22%5BClinical%20Features%5D%20OR%2066780%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_812758"><div><strong>Progressive vitiligo</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>812758</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.">C3806428</a></dd><dt><span class="dotprefix"></span></dt><dd>Finding</dd></dl></div></div></div>
<div class="spaceAbove nowrap">See: <a href="/medgen/812758">Feature record</a> | <a href="/medgen?term=%22Progressive%20vitiligo%22%5BClinical%20Features%5D%20OR%20812758%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_347513"><div><strong>Retinal pigment epithelial mottling</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>347513</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.">C1857644</a></dd><dt><span class="dotprefix"></span></dt><dd>Finding</dd></dl></div></div></div>
<div class="spaceAbove">Mottling (spots or blotches with different shades) of the retinal pigment epithelium, i.e., localized or generalized fundal pigment granularity associated with processes at the level of the retinal pigment epithelium.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/347513">Feature record</a> | <a href="/medgen?term=%22Retinal%20pigment%20epithelial%20mottling%22%5BClinical%20Features%5D%20OR%20347513%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 blood and blood-forming tissues</span><ul><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_52737" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Thrombocytopenia</a></span></li></ul></li><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_3395" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Choanal atresia</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_756015" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Cleft palate</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_40327" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Cleft upper lip</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_374311" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Deep philtrum</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_151862" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Epicanthus</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_326583" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Long nose</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_346640" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Sloping forehead</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_98390" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Upslanted palpebral fissure</a></span></li></ul></li><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_1645640" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">2-3 toe syndactyly</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_374376" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Sandal gap</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_82644" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Anal stenosis</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><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_1997" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Imperforate anus</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_343135" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Recurrent infection of the gastrointestinal tract</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_347513" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Retinal pigment epithelial mottling</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_42531" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Hydronephrosis</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_9963" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Premature ovarian insufficiency</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_120466" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Recurrent urinary tract infections</a></span></li></ul></li><li><span class="TLline">Abnormality of the immune system</span><ul><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_1918" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Autoimmune hemolytic anemia</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_340780" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">B lymphocytopenia</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_41679" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Dysgammaglobulinemia</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_155436" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Recurrent otitis media</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_20772" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Sinusitis</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_419385" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">T lymphocytopenia</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_113157" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Cafe-au-lait spot</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_66780" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Conjunctival telangiectasia</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_812758" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Progressive vitiligo</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_346975" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Malar prominence</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_7480" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Mastoiditis</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_1644158" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Microcephaly</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_44428" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Micrognathia</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_105318" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Delayed speech and language development</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_9030" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Glioma</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_98406" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Hyperactivity</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_7517" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Medulloblastoma</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_17999" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Neurodegeneration</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_14234" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Bronchiectasis</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_148159" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Recurrent bronchitis</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_195802" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Recurrent pneumonia</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_488785" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Macrotia</a></span></li></ul></li><li><span class="TLline">Growth abnormality</span><ul><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_4693" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Fetal growth restriction</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_87607" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Short stature</a></span></li></ul></li><li><span class="TLline">Neoplasm</span><ul><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_44223" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Lymphoma</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_20561" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Rhabdomyosarcoma</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=C0398791[DISCUI]&amp;test_type=Clinical" ref="ncbi_uid=140771">C</a></span><span class="chiclet unavailable round" title="Research Tests">R</span><span class="chiclet Ocolor" title="OMIM"><a ref="ncbi_uid=140771" target="_blank" href="/omim/251260">O</a></span><span class="chiclet Gcolor" title="GeneReviews"><a target="_blank" href="/books/NBK1176/" ref="ncbi_uid=140771">G</a></span><span class="chiclet Vcolor" title="ClinVar"><a target="_blank" href="/clinvar?LinkName=medgen_clinvar&amp;from_uid=140771" ref="ncbi_uid=140771">V</a></span></span><span class="TLline">Microcephaly, normal intelligence and immunodeficiency</span></li></ul></div></div></div></div></div><div id="tabMGEN"><div class="ds_tree"><ul><li><span class="TLline"><a href="/medgen/1843263" ref="tree=MeSH" title="MedGen record for DNA repair defect other than combined T-cell and B-cell immunodeficiencies">DNA repair defect other than combined T-cell and B-cell immunodeficiencies</a></span><ul><li><span class="matched_ds">Microcephaly, normal intelligence and immunodeficiency</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=2823&amp;search=Disease_Classif_Simple&amp;new=1" class="ital bold">this link</a> to review classifications for <span class="ital">Microcephaly, normal intelligence and immunodeficiency</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/39007137">Nijmegen breakage syndrome: 25-year experience of diagnosis and treatment in Ukraine.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Boyarchuk O,
Kostyuchenko L,
Akopyan H,
Bondarenko A,
Volokha A,
Hilfanova A,
Savchak I,
Nazarenko L,
Yarema N,
Urbas O,
Hrabovska I,
Lysytsia O,
Budzyn A,
Tykholaz O,
Ivanchuk M,
Bastanohova O,
Patskun E,
Vasylenko N,
Stepanovskyy Y,
Chernyshova L,
Makukh H</span><br />
<span class="medgenPMjournal">Front Immunol</span>
2024;15:1428724.
Epub 2024 Jun 28
doi: 10.3389/fimmu.2024.1428724.
<span class="bold">PMID: </span><a href="/pubmed/39007137" target="_blank">39007137</a><a href="/pmc/articles/PMC11239363" target="_blank" class="PubMedFree">Free PMC Article</a></div>
<div class="nl"><a target="_blank" href="/pubmed/36455867">Opening Pandora's box: abnormal genetic carrier screening and need for lifetime follow-up.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Strauss TS,
Boniferro E,
Brockhoff E,
Johnson A,
Schneider E,
Grubman O,
Cole D,
Hussain F,
Ashmead G,
Al-Ibraheemi Z,
Brustman L</span><br />
<span class="medgenPMjournal">Am J Obstet Gynecol MFM</span>
2023 Mar;5(3):100820.
Epub 2022 Nov 28
doi: 10.1016/j.ajogmf.2022.100820.
<span class="bold">PMID: </span><a href="/pubmed/36455867" target="_blank">36455867</a></div>
<div class="nl"><a target="_blank" href="/pubmed/29669169">Genetic testing for hereditary prostate cancer: Current status and limitations.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Zhen JT,
Syed J,
Nguyen KA,
Leapman MS,
Agarwal N,
Brierley K,
Llor X,
Hofstatter E,
Shuch B</span><br />
<span class="medgenPMjournal">Cancer</span>
2018 Aug 1;124(15):3105-3117.
Epub 2018 Apr 18
doi: 10.1002/cncr.31316.
<span class="bold">PMID: </span><a href="/pubmed/29669169" target="_blank">29669169</a></div>
<div><a target="_blank" href="https://pubmed.ncbi.nlm.nih.gov/?term=(microcephaly%2C%20normal%20intelligence%20and%20immunodeficiency)%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 (16)</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/39737638">Neuroblastoma Occurring in Nijmegen Breakage Syndrome.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Djurisic M,
Sarajlija A,
Radivojevic D,
Cirkovic S,
Djokic D,
Djuricic S,
Samardzija G,
Pasic S</span><br />
<span class="medgenPMjournal">J Pediatr Hematol Oncol</span>
2025 Jan 1;47(1):e74-e76.
Epub 2024 Nov 15
doi: 10.1097/MPH.0000000000002965.
<span class="bold">PMID: </span><a href="/pubmed/39737638" target="_blank">39737638</a></div>
<div class="nl"><a target="_blank" href="/pubmed/38446568">Germ line genetic NBN variation and predisposition to B-cell acute lymphoblastic leukemia in children.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Escherich CS,
Chen W,
Li Y,
Yang W,
Nishii R,
Li Z,
Raetz EA,
Devidas M,
Wu G,
Nichols KE,
Inaba H,
Pui CH,
Jeha S,
Camitta BM,
Larsen E,
Hunger SP,
Loh ML,
Yang JJ</span><br />
<span class="medgenPMjournal">Blood</span>
2024 May 30;143(22):2270-2283.
doi: 10.1182/blood.2023023336.
<span class="bold">PMID: </span><a href="/pubmed/38446568" target="_blank">38446568</a><a href="/pmc/articles/PMC11443573" target="_blank" class="PubMedFree">Free PMC Article</a></div>
<div class="nl"><a target="_blank" href="/pubmed/28637615">Cancer predisposition syndromes associated with myeloid malignancy.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Quinn E,
Nichols KE</span><br />
<span class="medgenPMjournal">Semin Hematol</span>
2017 Apr;54(2):115-122.
Epub 2017 Apr 7
doi: 10.1053/j.seminhematol.2017.04.003.
<span class="bold">PMID: </span><a href="/pubmed/28637615" target="_blank">28637615</a></div>
<div class="nl"><a target="_blank" href="/pubmed/22236430">DNA repair: the link between primary immunodeficiency and cancer.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">de Miranda NF,
Björkman A,
Pan-Hammarström Q</span><br />
<span class="medgenPMjournal">Ann N Y Acad Sci</span>
2011 Dec;1246:50-63.
doi: 10.1111/j.1749-6632.2011.06322.x.
<span class="bold">PMID: </span><a href="/pubmed/22236430" target="_blank">22236430</a></div>
<div class="nl"><a target="_blank" href="/pubmed/10203748">Radiation, DNA damage and cancer.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Hall J,
Angèle S</span><br />
<span class="medgenPMjournal">Mol Med Today</span>
1999 Apr;5(4):157-64.
doi: 10.1016/s1357-4310(99)01435-5.
<span class="bold">PMID: </span><a href="/pubmed/10203748" target="_blank">10203748</a></div>
<div><a target="_blank" href="https://pubmed.ncbi.nlm.nih.gov/?term=%22Microcephaly%2C%20normal%20intelligence%20and%20immunodeficiency%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 (164)</a></div><h3 class="subhead">Diagnosis</h3>
<div class="nl"><a target="_blank" href="/pubmed/39737638">Neuroblastoma Occurring in Nijmegen Breakage Syndrome.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Djurisic M,
Sarajlija A,
Radivojevic D,
Cirkovic S,
Djokic D,
Djuricic S,
Samardzija G,
Pasic S</span><br />
<span class="medgenPMjournal">J Pediatr Hematol Oncol</span>
2025 Jan 1;47(1):e74-e76.
Epub 2024 Nov 15
doi: 10.1097/MPH.0000000000002965.
<span class="bold">PMID: </span><a href="/pubmed/39737638" target="_blank">39737638</a></div>
<div class="nl"><a target="_blank" href="/pubmed/31537806">Chromosome instability syndromes.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Taylor AMR,
Rothblum-Oviatt C,
Ellis NA,
Hickson ID,
Meyer S,
Crawford TO,
Smogorzewska A,
Pietrucha B,
Weemaes C,
Stewart GS</span><br />
<span class="medgenPMjournal">Nat Rev Dis Primers</span>
2019 Sep 19;5(1):64.
doi: 10.1038/s41572-019-0113-0.
<span class="bold">PMID: </span><a href="/pubmed/31537806" target="_blank">31537806</a><a href="/pmc/articles/PMC10617425" target="_blank" class="PubMedFree">Free PMC Article</a></div>
<div class="nl"><a target="_blank" href="/pubmed/28637615">Cancer predisposition syndromes associated with myeloid malignancy.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Quinn E,
Nichols KE</span><br />
<span class="medgenPMjournal">Semin Hematol</span>
2017 Apr;54(2):115-122.
Epub 2017 Apr 7
doi: 10.1053/j.seminhematol.2017.04.003.
<span class="bold">PMID: </span><a href="/pubmed/28637615" target="_blank">28637615</a></div>
<div class="nl"><a target="_blank" href="/pubmed/27068998">NBS1 and multiple regulations of DNA damage response.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Komatsu K</span><br />
<span class="medgenPMjournal">J Radiat Res</span>
2016 Aug;57 Suppl 1(Suppl 1):i11-i17.
Epub 2016 Apr 10
doi: 10.1093/jrr/rrw031.
<span class="bold">PMID: </span><a href="/pubmed/27068998" target="_blank">27068998</a><a href="/pmc/articles/PMC4990113" target="_blank" class="PubMedFree">Free PMC Article</a></div>
<div class="nl"><a target="_blank" href="/pubmed/17712992">Nijmegen breakage syndrome.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Kondratenko I,
Paschenko O,
Polyakov A,
Bologov A</span><br />
<span class="medgenPMjournal">Adv Exp Med Biol</span>
2007;601:61-7.
doi: 10.1007/978-0-387-72005-0_6.
<span class="bold">PMID: </span><a href="/pubmed/17712992" target="_blank">17712992</a></div>
<div><a target="_blank" href="https://pubmed.ncbi.nlm.nih.gov/?term=%22Microcephaly%2C%20normal%20intelligence%20and%20immunodeficiency%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 (210)</a></div><h3 class="subhead">Therapy</h3>
<div class="nl"><a target="_blank" href="/pubmed/39737638">Neuroblastoma Occurring in Nijmegen Breakage Syndrome.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Djurisic M,
Sarajlija A,
Radivojevic D,
Cirkovic S,
Djokic D,
Djuricic S,
Samardzija G,
Pasic S</span><br />
<span class="medgenPMjournal">J Pediatr Hematol Oncol</span>
2025 Jan 1;47(1):e74-e76.
Epub 2024 Nov 15
doi: 10.1097/MPH.0000000000002965.
<span class="bold">PMID: </span><a href="/pubmed/39737638" target="_blank">39737638</a></div>
<div class="nl"><a target="_blank" href="/pubmed/26265251">Directed Alternative Splicing in Nijmegen Breakage Syndrome: Proof of Principle Concerning Its Therapeutical Application.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Salewsky B,
Hildebrand G,
Rothe S,
Parplys AC,
Radszewski J,
Kieslich M,
Wessendorf P,
Krenzlin H,
Borgmann K,
Nussenzweig A,
Sperling K,
Digweed M</span><br />
<span class="medgenPMjournal">Mol Ther</span>
2016 Feb;24(1):117-24.
Epub 2015 Aug 12
doi: 10.1038/mt.2015.144.
<span class="bold">PMID: </span><a href="/pubmed/26265251" target="_blank">26265251</a><a href="/pmc/articles/PMC4754538" target="_blank" class="PubMedFree">Free PMC Article</a></div>
<div class="nl"><a target="_blank" href="/pubmed/24044622">Nijmegen breakage syndrome and chronic polyarthritis.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Pasic S,
Cupic M,
Jovanovic T,
Djukic S,
Kavaric M,
Lazarevic I</span><br />
<span class="medgenPMjournal">Ital J Pediatr</span>
2013 Sep 17;39:59.
doi: 10.1186/1824-7288-39-59.
<span class="bold">PMID: </span><a href="/pubmed/24044622" target="_blank">24044622</a><a href="/pmc/articles/PMC3849883" target="_blank" class="PubMedFree">Free PMC Article</a></div>
<div class="nl"><a target="_blank" href="/pubmed/23266960">XCIND as a genetic disease of X-irradiation hypersensitivity and cancer susceptibility.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Mizutani S,
Takagi M</span><br />
<span class="medgenPMjournal">Int J Hematol</span>
2013 Jan;97(1):37-42.
Epub 2012 Dec 25
doi: 10.1007/s12185-012-1240-5.
<span class="bold">PMID: </span><a href="/pubmed/23266960" target="_blank">23266960</a></div>
<div class="nl"><a target="_blank" href="/pubmed/11765064">The inherited basis of human radiosensitivity.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Gatti RA</span><br />
<span class="medgenPMjournal">Acta Oncol</span>
2001;40(6):702-11.
doi: 10.1080/02841860152619115.
<span class="bold">PMID: </span><a href="/pubmed/11765064" target="_blank">11765064</a></div>
<div><a target="_blank" href="https://pubmed.ncbi.nlm.nih.gov/?term=%22Microcephaly%2C%20normal%20intelligence%20and%20immunodeficiency%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 (46)</a></div><h3 class="subhead">Prognosis</h3>
<div class="nl"><a target="_blank" href="/pubmed/39737638">Neuroblastoma Occurring in Nijmegen Breakage Syndrome.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Djurisic M,
Sarajlija A,
Radivojevic D,
Cirkovic S,
Djokic D,
Djuricic S,
Samardzija G,
Pasic S</span><br />
<span class="medgenPMjournal">J Pediatr Hematol Oncol</span>
2025 Jan 1;47(1):e74-e76.
Epub 2024 Nov 15
doi: 10.1097/MPH.0000000000002965.
<span class="bold">PMID: </span><a href="/pubmed/39737638" target="_blank">39737638</a></div>
<div class="nl"><a target="_blank" href="/pubmed/38961290">NBS1 lactylation is required for efficient DNA repair and chemotherapy resistance.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Chen H,
Li Y,
Li H,
Chen X,
Fu H,
Mao D,
Chen W,
Lan L,
Wang C,
Hu K,
Li J,
Zhu C,
Evans I,
Cheung E,
Lu D,
He Y,
Behrens A,
Yin D,
Zhang C</span><br />
<span class="medgenPMjournal">Nature</span>
2024 Jul;631(8021):663-669.
Epub 2024 Jul 3
doi: 10.1038/s41586-024-07620-9.
<span class="bold">PMID: </span><a href="/pubmed/38961290" target="_blank">38961290</a><a href="/pmc/articles/PMC11254748" target="_blank" class="PubMedFree">Free PMC Article</a></div>
<div class="nl"><a target="_blank" href="/pubmed/34084169">Editorial: Advances in Primary Immunodeficiency in Central-Eastern Europe.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Pac M,
Casanova JL,
Reisli I,
Maródi L</span><br />
<span class="medgenPMjournal">Front Immunol</span>
2021;12:667727.
Epub 2021 May 14
doi: 10.3389/fimmu.2021.667727.
<span class="bold">PMID: </span><a href="/pubmed/34084169" target="_blank">34084169</a><a href="/pmc/articles/PMC8168433" target="_blank" class="PubMedFree">Free PMC Article</a></div>
<div class="nl"><a target="_blank" href="/pubmed/30421807">Radiogenomics.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Story MD,
Durante M</span><br />
<span class="medgenPMjournal">Med Phys</span>
2018 Nov;45(11):e1111-e1122.
doi: 10.1002/mp.13064.
<span class="bold">PMID: </span><a href="/pubmed/30421807" target="_blank">30421807</a></div>
<div class="nl"><a target="_blank" href="/pubmed/24044622">Nijmegen breakage syndrome and chronic polyarthritis.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Pasic S,
Cupic M,
Jovanovic T,
Djukic S,
Kavaric M,
Lazarevic I</span><br />
<span class="medgenPMjournal">Ital J Pediatr</span>
2013 Sep 17;39:59.
doi: 10.1186/1824-7288-39-59.
<span class="bold">PMID: </span><a href="/pubmed/24044622" target="_blank">24044622</a><a href="/pmc/articles/PMC3849883" target="_blank" class="PubMedFree">Free PMC Article</a></div>
<div><a target="_blank" href="https://pubmed.ncbi.nlm.nih.gov/?term=%22Microcephaly%2C%20normal%20intelligence%20and%20immunodeficiency%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 (85)</a></div><h3 class="subhead">Clinical prediction guides</h3>
<div class="nl"><a target="_blank" href="/pubmed/38961290">NBS1 lactylation is required for efficient DNA repair and chemotherapy resistance.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Chen H,
Li Y,
Li H,
Chen X,
Fu H,
Mao D,
Chen W,
Lan L,
Wang C,
Hu K,
Li J,
Zhu C,
Evans I,
Cheung E,
Lu D,
He Y,
Behrens A,
Yin D,
Zhang C</span><br />
<span class="medgenPMjournal">Nature</span>
2024 Jul;631(8021):663-669.
Epub 2024 Jul 3
doi: 10.1038/s41586-024-07620-9.
<span class="bold">PMID: </span><a href="/pubmed/38961290" target="_blank">38961290</a><a href="/pmc/articles/PMC11254748" target="_blank" class="PubMedFree">Free PMC Article</a></div>
<div class="nl"><a target="_blank" href="/pubmed/30421807">Radiogenomics.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Story MD,
Durante M</span><br />
<span class="medgenPMjournal">Med Phys</span>
2018 Nov;45(11):e1111-e1122.
doi: 10.1002/mp.13064.
<span class="bold">PMID: </span><a href="/pubmed/30421807" target="_blank">30421807</a></div>
<div class="nl"><a target="_blank" href="/pubmed/19221393">MRN complex function in the repair of chromosomal Rag-mediated DNA double-strand breaks.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Helmink BA,
Bredemeyer AL,
Lee BS,
Huang CY,
Sharma GG,
Walker LM,
Bednarski JJ,
Lee WL,
Pandita TK,
Bassing CH,
Sleckman BP</span><br />
<span class="medgenPMjournal">J Exp Med</span>
2009 Mar 16;206(3):669-79.
Epub 2009 Feb 16
doi: 10.1084/jem.20081326.
<span class="bold">PMID: </span><a href="/pubmed/19221393" target="_blank">19221393</a><a href="/pmc/articles/PMC2699138" target="_blank" class="PubMedFree">Free PMC Article</a></div>
<div class="nl"><a target="_blank" href="/pubmed/10801460">The Mre11 complex and ATM: collaborating to navigate S phase.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Petrini JH</span><br />
<span class="medgenPMjournal">Curr Opin Cell Biol</span>
2000 Jun;12(3):293-6.
doi: 10.1016/s0955-0674(00)00091-0.
<span class="bold">PMID: </span><a href="/pubmed/10801460" target="_blank">10801460</a></div>
<div class="nl"><a target="_blank" href="/pubmed/7545870">Eleven Polish patients with microcephaly, immunodeficiency, and chromosomal instability: the Nijmegen breakage syndrome.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Chrzanowska KH,
Kleijer WJ,
Krajewska-Walasek M,
Białecka M,
Gutkowska A,
Goryluk-Kozakiewicz B,
Michałkiewicz J,
Stachowski J,
Gregorek H,
Lysón-Wojciechowska G</span><br />
<span class="medgenPMjournal">Am J Med Genet</span>
1995 Jul 3;57(3):462-71.
doi: 10.1002/ajmg.1320570321.
<span class="bold">PMID: </span><a href="/pubmed/7545870" target="_blank">7545870</a></div>
<div><a target="_blank" href="https://pubmed.ncbi.nlm.nih.gov/?term=%22Microcephaly%2C%20normal%20intelligence%20and%20immunodeficiency%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 (147)</a></div></div>
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<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>
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<div class="nl"><a target="_blank" href="/pubmed/23275190">Association between the NBS1 Glu185Gln polymorphism and lung cancer risk: a systemic review and meta-analysis.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Wang L,
Cheng J,
Gao J,
Wang J,
Liu X,
Xiong L</span><br />
<span class="medgenPMjournal">Mol Biol Rep</span>
2013 Mar;40(3):2711-5.
Epub 2012 Dec 29
doi: 10.1007/s11033-012-2358-5.
<span class="bold">PMID: </span><a href="/pubmed/23275190" target="_blank">23275190</a></div>
<div><a target="_blank" href="https://pubmed.ncbi.nlm.nih.gov/?term=%22Microcephaly%2C%20normal%20intelligence%20and%20immunodeficiency%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 (1)</a></div></div>
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<div class="portlet_content ln"><ul id="my-toc"></ul></div>
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<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=C0398791%5bDISCUI%5d&amp;filter=method%3A2%5F8" target="_blank">Deletion/duplication analysis (82)</a></li>
<li><a href="/gtr/tests?term=C0398791%5bDISCUI%5d&amp;filter=method%3A1%5F2" target="_blank">Enzyme assay (2)</a></li>
<li><a href="/gtr/tests?term=C0398791%5bDISCUI%5d&amp;filter=method%3A2%5F18" target="_blank">Mutation scanning of select exons (8)</a></li>
<li><a href="/gtr/tests?term=C0398791%5bDISCUI%5d&amp;filter=method%3A2%5F30" target="_blank">RNA analysis (1)</a></li>
<li><a href="/gtr/tests?term=C0398791%5bDISCUI%5d&amp;filter=method%3A2%5F9" target="_blank">Sequence analysis of select exons (16)</a></li>
<li><a href="/gtr/tests?term=C0398791%5bDISCUI%5d&amp;filter=method%3A2%5F7" target="_blank">Sequence analysis of the entire coding region (102)</a></li>
<li><a href="/gtr/tests?term=C0398791%5bDISCUI%5d&amp;filter=method%3A2%5F19" target="_blank">Targeted variant analysis (22)</a></li>
<li class="portletSeeAll portletSeeAllPad"><total><a href="/gtr/tests?term=C0398791%5bDISCUI%5d" target="_blank">See all (124)</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=251260" target="_blank">OMIM</a></li><li><a href="http://www.orpha.net/consor/cgi-bin/OC_Exp.php?Expert=647" target="_blank">Orphanet</a></li><li><a href="https://clinicaltrials.gov/search?cond=Microcephaly,%20normal%20intelligence%20and%20immunodeficiency" target="_blank">ClinicalTrials.gov</a></li></ul></div>
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<div class="portlet_content ln"><ul class="a_poppers"><li><a target="_blank" href="https://pubmed.ncbi.nlm.nih.gov/?term=(microcephaly%2C%20normal%20intelligence%20and%20immunodeficiency)%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(%22Microcephaly%2C%20normal%20intelligence%20and%20immunodeficiency%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>
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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=602667" target="_blank">OMIM</a></li><li><a href="/clinvar/?term=4683[geneid]" target="_blank">View NBN variations in ClinVar</a></li><li><a href="/nuccore/210032225" target="_blank">RefSeqGene</a></li><li><a href="https://catalog.coriell.org/Search?q=251260" target="_blank">Coriell Institute for Medical Research</a></li></ul></div>
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<div class="portlet_content ln"><ul><li><a href="http://www.diseaseinfosearch.org/Microcephaly+with+normal+intelligence%2C+immunodeficiency/4760" target="_blank">Genetic Alliance</a></li><li><a href="https://www.malacards.org/card/nijmegen_breakage_syndrome" target="_blank">MalaCards</a></li><li><a href="https://vsearch.nlm.nih.gov/vivisimo/cgi-bin/query-meta?v:project=medlineplus&amp;query=Microcephaly,%20normal%20intelligence%20and%20immunodeficiency" target="_blank">MedlinePlus</a></li><li><a href="https://medlineplus.gov/genetics/condition/nijmegen-breakage-syndrome" target="_blank">MedlinePlusGenetics (GHR)</a></li><li><a href="https://rarediseases.info.nih.gov/diseases/3904/disease" target="_blank">NCATS Office of Rare Diseases Research (GARD)</a></li></ul></div>
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<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>
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<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>
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<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>
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<div class="row">
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<nav class="bottom-links">
<ul class="mt-3">
<li>
<a class="text-white" href="//www.nlm.nih.gov/">NLM</a>
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<a class="text-white" href="https://www.nih.gov/">NIH</a>
</li>
<li>
<a class="text-white" href="https://www.hhs.gov/">HHS</a>
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<li>
<a class="text-white" href="https://www.usa.gov/">USA.gov</a>
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</nav>
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