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<meta name="keywords" content="C4022113, absent distal phalanx of the 4th toe, absent outermost bone of the 4th toe, aplasia of the distal phalanx of the 4th toe, finding, 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="" /><meta name="robots" content="index,nofollow,noarchive" />
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<title>Aplasia of the distal phalanx of the 4th toe (Concept Id: C4022113)
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<!--imgCountBooks = 0--><h1 class="medgenTitle"><div class="MedGenTitleText">Aplasia of the distal phalanx of the 4th toe</div></h1><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>867724</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.">C4022113</a></dd><dt><span class="dotprefix"></span></dt><dd>Finding</dd></dl></div></div><table class="medgenTable"><tbody><tr><td>Synonyms:</td>
<td>Absent distal phalanx of the 4th toe; Absent outermost bone of the 4th toe</td></tr>
<tr><td colspan="2" class="small"> </td></tr><tr><td>HPO:</td>
<td><a target="_blank" title="Human Phenotype Ontology" href="https://hpo.jax.org/app/browse/term/HP:0100379">HP:0100379</a></td></tr>
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<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></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 unavailable round" title="Clinical test">C</span><span class="chiclet unavailable round" title="Research Tests">R</span><span class="chiclet unavailable" title="OMIM">O</span><span class="chiclet unavailable" title="GeneReviews">G</span><span class="chiclet unavailable" title="ClinVar">V</span></span><span class="TLline">Aplasia of the distal phalanx of the 4th toe</span></li></ul></div></div></div></div></div><div id="tabMGEN"><div class="ds_tree"><ul><li><span class="TLline"><a href="/medgen/763618" ref="tree=MeSH" title="MedGen record for Abnormal digit morphology">Abnormal digit morphology</a></span><ul><li><span class="TLline"><a href="/medgen/390611" ref="tree=MeSH" title="MedGen record for Abnormal toe morphology">Abnormal toe morphology</a></span><ul><li><span class="TLline"><a href="/medgen/869479" ref="tree=MeSH" title="MedGen record for Abnormal fourth toe morphology">Abnormal fourth toe morphology</a></span><ul><li><span class="TLline"><a href="/medgen/869469" ref="tree=MeSH" title="MedGen record for Abnormality of the phalanges of the 4th toe">Abnormality of the phalanges of the 4th toe</a></span><ul><li><span class="TLline"><a href="/medgen/869443" ref="tree=MeSH" title="MedGen record for Abnormality of the distal phalanx of the 4th toe">Abnormality of the distal phalanx of the 4th toe</a></span><ul><li><span class="TLline"><a href="/medgen/867732" ref="tree=MeSH" title="MedGen record for Aplasia/Hypoplasia of the distal phalanx of the 4th toe">Aplasia/Hypoplasia of the distal phalanx of the 4th toe</a></span><ul><li><span class="matched_ds">Aplasia of the distal phalanx of the 4th toe</span></li></ul></li></ul></li></ul></li></ul></li></ul></li></ul></li></ul></div></div></div></div>
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<div class="portlet_content ln clinfeat">
<div class="divPopper rprt" id="rdis_120524"><div><strong>Holt-Oram syndrome</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>120524</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:">C0265264</span></a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Holt-Oram syndrome (HOS) is characterized by upper-limb defects, congenital heart malformation, and cardiac conduction disease. Upper-limb malformations may be unilateral, bilateral/symmetric, or bilateral/asymmetric and can range from triphalangeal or absent thumb(s) to phocomelia. Other upper-limb malformations can include unequal arm length caused by aplasia or hypoplasia of the radius, fusion or anomalous development of the carpal and thenar bones, abnormal forearm pronation and supination, abnormal opposition of the thumb, sloping shoulders, and restriction of shoulder joint movement. An abnormal carpal bone is present in all affected individuals and may be the only evidence of disease. A congenital heart malformation is present in 75% of individuals with HOS and most commonly involves the septum. Atrial septal defect and ventricular septal defect can vary in number, size, and location. Complex congenital heart malformations can also occur in individuals with HOS. Individuals with HOS with or without a congenital heart malformation are at risk for cardiac conduction disease. While individuals may present at birth with sinus bradycardia and first-degree atrioventricular (AV) block, AV block can progress unpredictably to a higher grade including complete heart block with and without atrial fibrillation.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/120524">Condition Record</a></div></div>
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<div class="nl"><a target="_blank" href="/pubmed/26698251">Concomitance of types D and E brachydactyly: a case report.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Tülay Koca T,
Çiledağ Özdemir F</span><br />
<span class="medgenPMjournal">Eur Rev Med Pharmacol Sci</span>
2015 Dec;19(23):4549-52.
<span class="bold">PMID: </span><a href="/pubmed/26698251" target="_blank">26698251</a></div>
<div><a target="_blank" href="https://pubmed.ncbi.nlm.nih.gov/?term=%22Aplasia%20of%20the%20distal%20phalanx%20of%20the%204th%20toe%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 (1)</a></div><h3 class="subhead">Clinical prediction guides</h3>
<div class="nl"><a target="_blank" href="/pubmed/26698251">Concomitance of types D and E brachydactyly: a case report.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Tülay Koca T,
Çiledağ Özdemir F</span><br />
<span class="medgenPMjournal">Eur Rev Med Pharmacol Sci</span>
2015 Dec;19(23):4549-52.
<span class="bold">PMID: </span><a href="/pubmed/26698251" target="_blank">26698251</a></div>
<div class="nl"><a target="_blank" href="/pubmed/12597131">Isolated flexor muscles of the little toe in the feet of an individual with atrophied or lacking 4th head of the M. extensor digitorum brevis and lacking the 4th tendon of the M. extensor digitorum longus.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Claassen H,
Wree A</span><br />
<span class="medgenPMjournal">Ann Anat</span>
2003 Jan;185(1):81-4.
doi: 10.1016/S0940-9602(03)80017-1.
<span class="bold">PMID: </span><a href="/pubmed/12597131" target="_blank">12597131</a></div>
<div><a target="_blank" href="https://pubmed.ncbi.nlm.nih.gov/?term=%22Aplasia%20of%20the%20distal%20phalanx%20of%20the%204th%20toe%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 (2)</a></div></div>
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