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<meta name="keywords" content="C0266597, absent auditory canals, absent ear canal, absent external auditory canals, atresia of external auditory canal, atresia of the external auditory canal, atresia of the external auditory canals, atretic auditory canal, atretic auditory canals, atretic external auditory canal, atretic external auditory canals, auditory canal atresia, congenital abnormality, congenital atresia of external auditory canal, external acoustic meatus atresia, external auditory canal atresia, external auditory meatal atresia, external auditory meatus atresia, 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="Absence or failure to form of the external auditory canal." /><meta name="robots" content="index,nofollow,noarchive" />
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<title>Atresia of the external auditory canal (Concept Id: C0266597)
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<!--
UID=78613
ConceptID=C0266597
-->
<!--imgCountBooks = 0--><h1 class="medgenTitle"><div class="MedGenTitleText">Atresia of the external auditory canal</div></h1><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>78613</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.">C0266597</a></dd><dt><span class="dotprefix"></span></dt><dd>Congenital Abnormality</dd></dl></div></div><table class="medgenTable"><tbody><tr><td>Synonyms:</td>
<td>Atresia of external auditory canal; Atresia of the external auditory canals; Atretic external auditory canal; Atretic external auditory canals; External auditory canal atresia; External auditory meatal atresia; External auditory meatus atresia</td></tr>
<tr><td><span class="bold">SNOMED CT: </span></td>
<td>Congenital atresia of external auditory canal (75355004); Atresia of external auditory canal (75355004)</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:0000413">HP:0000413</a></td></tr>
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<div class="portlet_head mgSectionHead ui-widget-header"><h1 class="nl" id="Definition">Definition</h1><a sid="100" href="#" class="portlet_shutter" title="Show/hide content"></a></div>
<div class="portlet_content ln">Absence or failure to form of the external auditory canal. [from <a title="Human Phenotype Ontology" href="http://www.human-phenotype-ontology.org" class="defSource" target="_blank">HPO</a>]</div>
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<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></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=C0266597[DISCUI]&amp;test_type=Clinical" ref="ncbi_uid=78613">C</a></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 Vcolor" title="ClinVar"><a target="_blank" href="/clinvar?LinkName=medgen_clinvar&amp;from_uid=78613" ref="ncbi_uid=78613">V</a></span></span><span class="TLline">Atresia of the external auditory canal</span></li></ul></div></div></div></div></div><div id="tabMGEN"><div class="ds_tree"><ul><li><span class="TLline"><a href="/medgen/867443" ref="tree=MeSH" title="MedGen record for Phenotypic abnormality">Phenotypic abnormality</a></span><ul><li><span class="TLline"><a href="/medgen/75618" ref="tree=MeSH" title="MedGen record for Ear malformation">Ear malformation</a></span><ul><li><span class="TLline"><a href="/medgen/1640667" ref="tree=MeSH" title="MedGen record for Abnormal ear morphology">Abnormal ear morphology</a></span><ul><li><span class="TLline"><a href="/medgen/335428" ref="tree=MeSH" title="MedGen record for Abnormality of the outer ear">Abnormality of the outer ear</a></span><ul><li><span class="TLline"><a href="/medgen/867433" ref="tree=MeSH" title="MedGen record for Abnormal auditory canal morphology">Abnormal auditory canal morphology</a></span><ul><li><span class="matched_ds">Atresia of the external auditory canal</span><ul><li><span class="TLline"><a href="/medgen/868049" ref="tree=MeSH" title="MedGen record for Cutaneous atresia of the external auditory canal">Cutaneous atresia of the external auditory canal</a></span></li><li><span class="TLline"><a href="/medgen/868048" ref="tree=MeSH" title="MedGen record for Osseous atresia of the external auditory canal">Osseous atresia of the external auditory canal</a></span></li></ul></li></ul></li></ul></li></ul></li></ul></li></ul></li></ul></div></div></div></div>
</div>
<div class="portlet mgSection" id="ID_112">
<div class="portlet_head mgSectionHead ui-widget-header"><h1 class="nl" id="Conditions_with_this_feature">Conditions with this feature</h1><a sid="112" href="#" class="portlet_shutter" title="Show/hide content"></a></div>
<div class="portlet_content ln clinfeat">
<div class="divPopper rprt" id="rdis_1162"><div><strong>Crouzon syndrome</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>1162</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.">C0010273</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Crouzon syndrome is an autosomal dominant disorder characterized by craniosynostosis causing secondary alterations of the facial bones and facial structure. Common features include hypertelorism, exophthalmos and external strabismus, parrot-beaked nose, short upper lip, hypoplastic maxilla, and a relative mandibular prognathism (Reardon et al., 1994; Glaser et al., 2000).</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/1162">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_67392"><div><strong>Oculoauriculovertebral spectrum with radial defects</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>67392</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.">C0220681</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">A rare branchial arches and limb primordia development disorder with characteristics of variable degrees of uni or bilateral craniofacial malformation and radial defects that result in extremely variable phenotypic manifestations. Characteristic features include low postnatal weight, short stature, vertebral defects, hearing loss, and facial dysmorphism (including facial asymmetry, external, middle and inner ear malformations, orofacial clefts, and mandibular hypoplasia). These features are invariably associated with radial defects, such as preaxial polydactyly, thumb and/or radius hypoplasia/agenesis, or triphalangeal thumb. Cardiac, pulmonary, renal, and central nervous system involvement has also been reported.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/67392">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_113104"><div><strong>Hypertelorism, microtia, facial clefting syndrome</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>113104</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.">C0220742</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">A very rare syndrome with characteristics of the combination of hypertelorism, cleft lip and palate and microtia. Nine cases have been reported in the literature in seven families. Some patients have associated cardiac or renal congenital malformations. Short stature and intellectual deficiency are common. The reported cases support autosomal recessive inheritance.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/113104">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_66078"><div><strong>Treacher Collins syndrome</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>66078</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.">C0242387</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Treacher Collins syndrome (TCS) is characterized by lower eyelid abnormalities, malar hypoplasia, downslanted palpebral fissures, and micro- or retrognathia due to symmetric hypoplasia of the zygomatic bones, maxilla, and mandible. External ear anomalies include absent, small, malformed, and/or posteriorly rotated ears and atresia or stenosis of the external auditory canals. About 40%-50% of individuals have conductive hearing loss attributed most commonly to malformation of the ossicles and hypoplasia of the middle ear cavities. Inner ear structures tend to be normal. Significant respiratory and feeding difficulties can be present in infancy. Other, less common abnormalities include cleft palate and unilateral or bilateral choanal stenosis or atresia. Typically, intellect is normal.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/66078">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_120514"><div><strong>Pallister-Hall syndrome</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>120514</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.">C0265220</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">GLI3-related Pallister-Hall syndrome (GLI3-PHS) is characterized by a spectrum of anomalies ranging from polydactyly, asymptomatic bifid epiglottis, and hypothalamic hamartoma at the mild end to laryngotracheal cleft with neonatal lethality at the severe end. Individuals with mild GLI3-PHS may be incorrectly diagnosed as having isolated postaxial polydactyly type A. Individuals with GLI3-PHS can have pituitary insufficiency and may die as neonates from undiagnosed and untreated adrenal insufficiency.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/120514">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_120519"><div><strong>Nager syndrome</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>120519</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.">C0265245</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Nager syndrome is the prototype for a group of disorders collectively referred to as the acrofacial dysostoses (AFDs), which are characterized by malformation of the craniofacial skeleton and the limbs. The major facial features of Nager syndrome include downslanted palpebral fissures, midface retrusion, and micrognathia, the latter of which often requires the placement of a tracheostomy in early childhood. Limb defects typically involve the anterior (radial) elements of the upper limbs and manifest as small or absent thumbs, triphalangeal thumbs, radial hypoplasia or aplasia, and radioulnar synostosis. Phocomelia of the upper limbs and, occasionally, lower-limb defects have also been reported. The presence of anterior upper-limb defects and the typical lack of lower-limb involvement distinguishes Nager syndrome from Miller syndrome (263750), another rare AFD; however, distinguishing Nager syndrome from other AFDs, including Miller syndrome, can be challenging (summary by Bernier et al., 2012).</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/120519">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_98032"><div><strong>Ankyloblepharon-ectodermal defects-cleft lip/palate syndrome</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>98032</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.">C0406709</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">The TP63-related disorders comprise six overlapping phenotypes: Ankyloblepharon-ectodermal defects-cleft lip/palate (AEC) syndrome (which includes Rapp-Hodgkin syndrome). Acro-dermo-ungual-lacrimal-tooth (ADULT) syndrome. Ectrodactyly, ectodermal dysplasia, cleft lip/palate syndrome 3 (EEC3). Limb-mammary syndrome. Split-hand/foot malformation type 4 (SHFM4). Isolated cleft lip/cleft palate (orofacial cleft 8). Individuals typically have varying combinations of ectodermal dysplasia (hypohidrosis, nail dysplasia, sparse hair, tooth abnormalities), cleft lip/palate, split-hand/foot malformation/syndactyly, lacrimal duct obstruction, hypopigmentation, hypoplastic breasts and/or nipples, and hypospadias. Findings associated with a single phenotype include ankyloblepharon filiforme adnatum (tissue strands that completely or partially fuse the upper and lower eyelids), skin erosions especially on the scalp associated with areas of scarring, and alopecia, trismus, and excessive freckling.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/98032">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_96605"><div><strong>Deletion of long arm of chromosome 18</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>96605</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.">C0432443</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Monosomy 18q is a partial deletion of the long arm of chromosome 18 characterized by highly variable phenotype, most commonly including hypotonia, developmental delay, short stature, growth hormone deficiency, hearing loss and external ear anomalies, intellectual disability, palatal defects, dysmorphic facial features, skeletal anomalies (foot deformities, tapering fingers, scoliosis) and mood disorders.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/96605">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_330467"><div><strong>Lethal short-limb skeletal dysplasia, Al Gazali type</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>330467</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.">C1832435</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove nowrap">See: <a href="/medgen/330467">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_322970"><div><strong>Branchiogenic deafness syndrome</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>322970</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.">C1836673</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">A multiple congenital anomalies syndrome, described in one family to date, with characteristics of branchial cysts or fistula, ear malformations, congenital hearing loss (conductive, sensorineural, and mixed), internal auditory canal hypoplasia, strabismus, trismus, abnormal fifth fingers, vitiliginous lesions, short stature and mild learning disability. Renal and urethral abnormalities are absent.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/322970">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_323016"><div><strong>Fanconi anemia complementation group I</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>323016</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.">C1836861</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Fanconi anemia (FA) is characterized by physical abnormalities, bone marrow failure, and increased risk for malignancy. Physical abnormalities, present in approximately 75% of affected individuals, include one or more of the following: short stature, abnormal skin pigmentation, skeletal malformations of the upper and/or lower limbs, microcephaly, and ophthalmic and genitourinary tract anomalies. Progressive bone marrow failure with pancytopenia typically presents in the first decade, often initially with thrombocytopenia or leukopenia. The incidence of acute myeloid leukemia is 13% by age 50 years. Solid tumors particularly of the head and neck, skin, and genitourinary tract are more common in individuals with FA.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/323016">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_331276"><div><strong>Mandibulofacial dysostosis with ptosis, autosomal dominant</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>331276</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.">C1842349</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove nowrap">See: <a href="/medgen/331276">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_375051"><div><strong>Aural atresia, congenital</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>375051</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.">C1842937</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Altmann (1955) was the first to describe a congenital aural atresia (CAA) classification, which has been modified over the years (Cremers et al., 1988; Schuknecht, 1989; Jahrsdoerfer et al., 1992). In CAA type I, there is bony or fibrous atresia of the lateral part of the external auditory canal and an almost normal medial part and middle ear. CAA type II is the most frequent type and is characterized by partial or total aplasia of the external auditory canal. CAA type IIA involves an external auditory canal with either complete bony atresia of the medial part or partial aplasia that ends blindly in a fistula leading to a rudimentary tympanic membrane. CAA type IIB is characterized by bony stenosis of the total length of the external auditory canal. CAA type III involves bony atresia of the external auditory canal and a very small or absent middle-ear cavity (summary by Feenstra et al., 2011).</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/375051">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_377668"><div><strong>Beare-Stevenson cutis gyrata syndrome</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>377668</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.">C1852406</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Beare-Stevenson cutis gyrata syndrome (BSTVS) is an autosomal dominant condition characterized by the furrowed skin disorder of cutis gyrata, acanthosis nigricans, craniosynostosis, craniofacial dysmorphism, digital anomalies, umbilical and anogenital abnormalities, and early death (summary by Przylepa et al., 1996).</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/377668">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_343380"><div><strong>Lambotte syndrome</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>343380</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.">C1855550</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove nowrap">See: <a href="/medgen/343380">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_340946"><div><strong>Visceral neuropathy, familial, 1, autosomal recessive</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>340946</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.">C1855733</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Autosomal recessive familial visceral neuropathy-1 (VSCN1) is characterized by a broad spectrum of developmental anomalies associating neural crest and extraneural crest features, including intestinal dysmotility due to aganglionosis (Hirschsprung disease), hypoganglionosis, and/or chronic intestinal pseudoobstruction. Some patients develop progressive peripheral neuropathy, and arthrogryposis has been observed. Hypoplasia or aplasia of the olfactory bulb and of the external auditory canals, as well as microtia or anotia, have been reported. Patients also exhibit facial dysmorphisms, including microretrognathia in most; other variable features include structural cardiac anomalies and arthrogryposis with multiple pterygia (Le et al., 2021).&#13; Genetic Heterogeneity of Familial Visceral Neuropathy&#13; Autosomal recessive familial visceral neuropathy-2 (VSCN2; 619465) is caused by mutation in the ERBB2 gene (164870) on chromosome 17q12. Also see VSCN3 (609629) for an autosomal dominant form of the disorder.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/340946">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_347428"><div><strong>Conductive deafness-ptosis-skeletal anomalies syndrome</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>347428</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.">C1857340</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">A rare genetic ectodermal dysplasia syndrome with characteristics of conductive hearing loss due to atresia of the external auditory canal and the middle ear complicated by chronic infection, ptosis and skeletal anomalies (internal rotation of hips, dislocation of the radial heads and fifth finger clinodactyly). In addition, a thin, pinched nose, delayed hair growth and dysplastic teeth are associated. There have been no further descriptions in the literature since 1978.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/347428">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_347912"><div><strong>Cooper-Jabs syndrome</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>347912</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.">C1859591</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">A rare multiple congenital anomalies/dysmorphic syndrome characterized by auditory canal atresia (resulting in moderate conductive hearing loss) associated with intellectual disability, ventricular septal defect, umbilical hernia, anteriorly displaced anus, various skeletal anomalies (such as mild clubfoot, long fifth fingers, proximally placed thumbs), and craniofacial dysmorphism which includes brachycephaly, prominent forehead, flattened occiput, midface hypoplasia, anteverted nares, and low set, posteriorly rotated ears with overlapping superior helix. There have been no further descriptions in the literature since 1987.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/347912">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_355084"><div><strong>Arrhinia with choanal atresia and microphthalmia syndrome</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>355084</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.">C1863878</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Bosma arhinia microphthalmia syndrome (BAMS) is characterized by severe hypoplasia of the nose and eyes, palatal abnormalities, deficient taste and smell, inguinal hernias, hypogonadotropic hypogonadism with cryptorchidism, and normal intelligence (summary by Graham and Lee, 2006).&#13; Also see absence of nasal bones (161480).</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/355084">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_355264"><div><strong>Mandibulofacial dysostosis-microcephaly syndrome</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>355264</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.">C1864652</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Mandibulofacial dysostosis with microcephaly (MFDM) is characterized by malar and mandibular hypoplasia, microcephaly (congenital or postnatal onset), intellectual disability (mild, moderate, or severe), malformations of the external ear, and hearing loss that is typically conductive. Associated craniofacial malformations may include cleft palate, choanal atresia, zygomatic arch cleft (identified on cranial CT scan), and facial asymmetry. Other relatively common findings (present in 25%-35% of individuals) can include cardiac anomalies, thumb anomalies, esophageal atresia/tracheoesophageal fistula, short stature, spine anomalies, and epilepsy.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/355264">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_355971"><div><strong>Short stature-auditory canal atresia-mandibular hypoplasia-skeletal anomalies syndrome</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>355971</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.">C1865361</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Short stature, auditory canal atresia, mandibular hypoplasia, and skeletal abnormalities (SAMS) is an autosomal recessive multiple congenital anomaly syndrome with features of a first and second branchial arch syndrome. Craniofacial abnormalities can lead to conductive hearing loss, respiratory insufficiency, and feeding difficulties. Additional features include rhizomelic skeletal anomalies as well as abnormalities of the shoulder and pelvic joints. Affected individuals may also have some features of a neurocristopathy or abnormal mesoderm development, such as urogenital anomalies, that are distinct from other branchial arch syndromes (summary by Parry et al., 2013).</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/355971">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_361813"><div><strong>External auditory canal atresia-vertical talus-hypertelorism syndrome</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>361813</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.">C1876181</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">A rare, genetic, multiple congenital anomalies/dysmorphic syndrome characterized by the triad: congenital, bilateral, symmetrical, subtotal, external auditory canal atresia, bilateral vertical talus and increased interocular distance.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/361813">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_436451"><div><strong>Diamond-Blackfan anemia 7</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>436451</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.">C2675512</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Diamond-Blackfan anemia (DBA) is characterized by a profound normochromic and usually macrocytic anemia with normal leukocytes and platelets, congenital malformations in up to 50%, and growth deficiency in 30% of affected individuals. The hematologic complications occur in 90% of affected individuals during the first year of life. The phenotypic spectrum ranges from a mild form (e.g., mild anemia or no anemia with only subtle erythroid abnormalities, physical malformations without anemia) to a severe form of fetal anemia resulting in nonimmune hydrops fetalis. DBA is associated with an increased risk for acute myelogenous leukemia (AML), myelodysplastic syndrome (MDS), and solid tumors including osteogenic sarcoma.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/436451">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_412873"><div><strong>Diamond-Blackfan anemia 10</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>412873</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.">C2750080</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Diamond-Blackfan anemia (DBA) is characterized by a profound normochromic and usually macrocytic anemia with normal leukocytes and platelets, congenital malformations in up to 50%, and growth deficiency in 30% of affected individuals. The hematologic complications occur in 90% of affected individuals during the first year of life. The phenotypic spectrum ranges from a mild form (e.g., mild anemia or no anemia with only subtle erythroid abnormalities, physical malformations without anemia) to a severe form of fetal anemia resulting in nonimmune hydrops fetalis. DBA is associated with an increased risk for acute myelogenous leukemia (AML), myelodysplastic syndrome (MDS), and solid tumors including osteogenic sarcoma.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/412873">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_501171"><div><strong>Craniofacial microsomia 1</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>501171</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.">C3495417</a></dd><dt><span class="dotprefix"></span></dt><dd>Congenital Abnormality</dd></dl></div></div></div>
<div class="spaceAbove">Craniofacial microsomia is a term used to describe a spectrum of abnormalities that primarily affect the development of the skull (cranium) and face before birth. Microsomia means abnormal smallness of body structures. Most people with craniofacial microsomia have differences in the size and shape of facial structures between the right and left sides of the face (facial asymmetry). In about two-thirds of cases, both sides of the face have abnormalities, which usually differ from one side to the other. Other individuals with craniofacial microsomia are affected on only one side of the face. The facial characteristics in craniofacial microsomia typically include underdevelopment of one side of the upper or lower jaw (maxillary or mandibular hypoplasia), which can cause dental problems and difficulties with feeding and speech. In cases of severe mandibular hypoplasia, breathing may also be affected.\n\nPeople with craniofacial microsomia usually have ear abnormalities affecting one or both ears, typically to different degrees. They may have growths of skin (skin tags) in front of the ear (preauricular tags), an underdeveloped or absent external ear (microtia or anotia), or a closed or absent ear canal; these abnormalities may lead to hearing loss. Eye problems are less common in craniofacial microsomia, but some affected individuals have an unusually small eyeball (microphthalmia) or other eye abnormalities that result in vision loss.\n\nAbnormalities in other parts of the body, such as malformed bones of the spine (vertebrae), abnormally shaped kidneys, and heart defects, may also occur in people with craniofacial microsomia.\n\nMany other terms have been used for craniofacial microsomia. These other names generally refer to forms of craniofacial microsomia with specific combinations of signs and symptoms, although sometimes they are used interchangeably. Hemifacial microsomia often refers to craniofacial microsomia with maxillary or mandibular hypoplasia. People with hemifacial microsomia and noncancerous (benign) growths in the eye called epibulbar dermoids may be said to have Goldenhar syndrome or oculoauricular dysplasia.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/501171">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_502760"><div><strong>Atresia of external auditory canal and conductive deafness</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>502760</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.">C3502361</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove nowrap">See: <a href="/medgen/502760">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_766956"><div><strong>Diamond-Blackfan anemia 11</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>766956</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.">C3554042</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Diamond-Blackfan anemia (DBA) is characterized by a profound normochromic and usually macrocytic anemia with normal leukocytes and platelets, congenital malformations in up to 50%, and growth deficiency in 30% of affected individuals. The hematologic complications occur in 90% of affected individuals during the first year of life. The phenotypic spectrum ranges from a mild form (e.g., mild anemia or no anemia with only subtle erythroid abnormalities, physical malformations without anemia) to a severe form of fetal anemia resulting in nonimmune hydrops fetalis. DBA is associated with an increased risk for acute myelogenous leukemia (AML), myelodysplastic syndrome (MDS), and solid tumors including osteogenic sarcoma.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/766956">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_816205"><div><strong>Van Maldergem syndrome 2</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>816205</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.">C3809875</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Van Maldergem syndrome is an autosomal recessive disorder characterized by intellectual disability, typical craniofacial features, auditory malformations resulting in hearing loss, and skeletal and limb malformations. Some patients have renal hypoplasia. Brain MRI typically shows periventricular nodular heterotopia (summary by Cappello et al., 2013).&#13; For a discussion of genetic heterogeneity of Van Maldergem syndrome, see 601390.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/816205">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_895657"><div><strong>Diamond-Blackfan anemia 14 with mandibulofacial dysostosis</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>895657</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.">C4225422</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Diamond-Blackfan anemia (DBA) is characterized by a profound normochromic and usually macrocytic anemia with normal leukocytes and platelets, congenital malformations in up to 50%, and growth deficiency in 30% of affected individuals. The hematologic complications occur in 90% of affected individuals during the first year of life. The phenotypic spectrum ranges from a mild form (e.g., mild anemia or no anemia with only subtle erythroid abnormalities, physical malformations without anemia) to a severe form of fetal anemia resulting in nonimmune hydrops fetalis. DBA is associated with an increased risk for acute myelogenous leukemia (AML), myelodysplastic syndrome (MDS), and solid tumors including osteogenic sarcoma.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/895657">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_924974"><div><strong>Muscular dystrophy-dystroglycanopathy (congenital with brain and eye anomalies), type A1</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>924974</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.">C4284790</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Congenital muscular dystrophy-dystroglycanopathy with brain and eye anomalies (type A), which includes both the more severe Walker-Warburg syndrome (WWS) and the slightly less severe muscle-eye-brain disease (MEB), is a genetically heterogeneous autosomal recessive disorder with characteristic brain and eye malformations, profound mental retardation, congenital muscular dystrophy, and early death. The phenotype commonly includes cobblestone (type II) lissencephaly, cerebellar malformations, and retinal malformations. More variable features include macrocephaly or microcephaly, hypoplasia of midline brain structures, ventricular dilatation, microphthalmia, cleft lip/palate, and congenital contractures (Dobyns et al., 1989). Those with a more severe phenotype characterized as Walker-Warburg syndrome often die within the first year of life, whereas those characterized as having muscle-eye-brain disease may rarely acquire the ability to walk and to speak a few words. These are part of a group of disorders resulting from defective glycosylation of DAG1 (128239), collectively known as 'dystroglycanopathies' (Godfrey et al., 2007).&#13; Genetic Heterogeneity of Congenital Muscular Dystrophy-Dystroglycanopathy with Brain and Eye Anomalies (Type A)&#13; Muscular dystrophy-dystroglycanopathy with brain and eye anomalies (type A) is genetically heterogeneous and can be caused by mutation in other genes involved in DAG1 glycosylation: see MDDGA2 (613150), caused by mutation in the POMT2 gene (607439); MDDGA3 (253280), caused by mutation in the POMGNT1 gene (606822); MDDGA4 (253800), caused by mutation in the FKTN gene (607440); MDDGA5 (613153), caused by mutation in the FKRP gene (606596); MDDGA6 (613154), caused by mutation in the LARGE gene (603590); MDDGA7 (614643), caused by mutation in the ISPD gene (CRPPA; 614631); MDDGA8 (614830) caused by mutation in the GTDC2 gene (POMGNT2; 614828); MDDGA9 (616538), caused by mutation in the DAG1 gene (128239); MDDGA10 (615041), caused by mutation in the TMEM5 gene (RXYLT1; 605862); MDDGA11 (615181), caused by mutation in the B3GALNT2 gene (610194); MDDGA12 (615249), caused by mutation in the SGK196 gene (POMK; 615247); MDDGA13 (615287), caused by mutation in the B3GNT1 gene (B4GAT1; 605517); and MDDGA14 (615350), caused by mutation in the GMPPB gene (615320).</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/924974">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_1624349"><div><strong>Fraser syndrome 2</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>1624349</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.">C4540036</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Fraser syndrome is an autosomal recessive malformation disorder characterized by cryptophthalmos, syndactyly, and abnormalities of the respiratory and urogenital tract (summary by van Haelst et al., 2008).&#13; For a general phenotypic description and a discussion of genetic heterogeneity of Fraser syndrome, see 219000.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/1624349">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_1639061"><div><strong>Fraser syndrome 1</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>1639061</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.">C4551480</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Fraser syndrome is an autosomal recessive malformation disorder characterized by cryptophthalmos, syndactyly, and abnormalities of the respiratory and urogenital tract (summary by van Haelst et al., 2008).&#13; Genetic Heterogeneity of Fraser Syndrome&#13; Fraser syndrome-2 (FRASRS2) is caused by mutation in the FREM2 gene (608945) on chromosome 13q13, and Fraser syndrome-3 (FRASRS3; 617667) is caused by mutation in the GRIP1 gene (604597) on chromosome 12q14.&#13; See Bowen syndrome (211200) for a comparable but probably distinct syndrome of multiple congenital malformations.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/1639061">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_1644627"><div><strong>Van Maldergem syndrome 1</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>1644627</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.">C4551950</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Van Maldergem syndrome is an autosomal recessive disorder characterized by intellectual disability, typical craniofacial features, auditory malformations resulting in hearing loss, and skeletal and limb malformations. Some patients have renal hypoplasia. Brain MRI typically shows periventricular nodular heterotopia (summary by Cappello et al., 2013).&#13; Genetic Heterogeneity of Van Maldergem Syndrome&#13; See also VMLDS2 (615546), caused by mutation in the FAT4 gene (612411) on chromosome 4q28.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/1644627">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_1641240"><div><strong>Meier-Gorlin syndrome 1</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>1641240</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.">C4552001</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">The Meier-Gorlin syndrome is a rare disorder characterized by severe intrauterine and postnatal growth retardation, microcephaly, bilateral microtia, and aplasia or hypoplasia of the patellae (summary by Shalev and Hall, 2003). While almost all cases have primordial dwarfism with substantial prenatal and postnatal growth retardation, not all cases have microcephaly, and microtia and absent/hypoplastic patella are absent in some. Despite the presence of microcephaly, intellect is usually normal (Bicknell et al., 2011).&#13; Genetic Heterogeneity of Meier-Gorlin Syndrome&#13; Most forms of Meier-Gorlin syndrome are autosomal recessive disorders, including Meier-Gorlin syndrome-1; Meier-Gorlin syndrome-2 (613800), caused by mutation in the ORC4 gene (603056) on chromosome 2q23; Meier-Gorlin syndrome-3 (613803), caused by mutation in the ORC6 gene (607213) on chromosome 16q11; Meier-Gorlin syndrome-4 (613804), caused by mutation in the CDT1 gene (605525) on chromosome 16q24; Meier-Gorlin syndrome-5 (613805), caused by mutation in the CDC6 gene (602627) on chromosome 17q21; Meier-Gorlin syndrome-7 (617063), caused by mutation in the CDC45L gene (603465) on chromosome 22q11; and Meier-Gorlin syndrome-8 (617564), caused by mutation in the MCM5 gene (602696) on chromosome 22q12.&#13; An autosomal dominant form of the disorder, Meier-Gorlin syndrome-6 (616835), is caused by mutation in the GMNN gene (602842) on chromosome 6p22.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/1641240">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_1648389"><div><strong>X-linked external auditory canal atresia-dilated internal auditory canal-facial dysmorphism syndrome</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>1648389</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.">C4746975</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">X-linked deafness-7 (DFNX7) is a congenital form of bilateral mixed or conductive hearing loss, which may be progressive. It is not associated with vestibular symptoms (Xing et al., 2017).</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/1648389">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_1683985"><div><strong>Mullegama-Klein-Martinez syndrome</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>1683985</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.">C5193008</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Mullegama-Klein-Martinez syndrome (MKMS) is an X-linked recessive disorder with features of microcephaly, microtia, hearing loss, developmental delay, dysmorphic features, congenital heart defect, and digit abnormalities. Females are generally affected more severely than males (Mullegama et al., 2019).</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/1683985">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_1677486"><div><strong>Warburg-cinotti syndrome</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>1677486</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.">C5193019</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Warburg-Cinotti syndrome (WRCN) is characterized by progressive corneal neovascularization, keloid formation, chronic skin ulcers, wasting of subcutaneous tissue, flexion contractures of the fingers, and acroosteolysis (Xu et al., 2018).</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/1677486">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_1830104"><div><strong>Choanal atresia-athelia-hypothyroidism-delayed puberty-short stature syndrome</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>1830104</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.">C5680310</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Branchial arch abnormalities, choanal atresia, athelia, hearing loss, and hypothyroidism syndrome (BCAHH) is an autosomal dominant disorder characterized by choanal atresia, athelia or hypoplastic nipples, branchial sinus abnormalities, neck pits, lacrimal duct anomalies, hearing loss, external ear malformations, and thyroid abnormalities. Additional features may include developmental delay, impaired intellectual development, and growth failure/retardation (summary by Cuvertino et al., 2020 and Baldridge et al., 2020).</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/1830104">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_1823962"><div><strong>Braddock-carey syndrome 2</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>1823962</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.">C5774189</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Braddock-Carey syndrome-2 (BRDCS2) is characterized by congenital thrombocytopenia, microcephaly, and facial dysmorphisms including Pierre-Robin sequence (Sleiman et al., 2017).&#13; For a general phenotypic description and discussion of genetic heterogeneity of Braddock-Carey syndrom, see BRCDS1 (619980).</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/1823962">Condition Record</a></div></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_98032" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Ankyloblepharon-ectodermal defects-cleft lip/palate syndrome</a></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_355084" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Arrhinia with choanal atresia and microphthalmia syndrome</a></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_502760" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Atresia of external auditory canal and conductive deafness</a></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_375051" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Aural atresia, congenital</a></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_377668" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Beare-Stevenson cutis gyrata syndrome</a></div><div class="jig-moreless" data-jigconfig="class: 'moveDown', moreText: 'See full list (39)', lessText: 'Show less', nodeBefore: 0"><span id="clinMore">
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_1823962" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Braddock-carey syndrome 2</a></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_322970" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Branchiogenic deafness syndrome</a></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_1830104" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Choanal atresia-athelia-hypothyroidism-delayed puberty-short stature syndrome</a></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_347428" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Conductive deafness-ptosis-skeletal anomalies syndrome</a></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_347912" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Cooper-Jabs syndrome</a></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_501171" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Craniofacial microsomia 1</a></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_1162" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Crouzon syndrome</a></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_96605" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Deletion of long arm of chromosome 18</a></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_412873" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Diamond-Blackfan anemia 10</a></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_766956" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Diamond-Blackfan anemia 11</a></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_895657" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Diamond-Blackfan anemia 14 with mandibulofacial dysostosis</a></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_436451" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Diamond-Blackfan anemia 7</a></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_361813" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">External auditory canal atresia-vertical talus-hypertelorism syndrome</a></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_323016" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Fanconi anemia complementation group I</a></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_1639061" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Fraser syndrome 1</a></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_1624349" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Fraser syndrome 2</a></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_113104" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Hypertelorism, microtia, facial clefting syndrome</a></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_343380" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Lambotte syndrome</a></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_330467" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Lethal short-limb skeletal dysplasia, Al Gazali type</a></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_331276" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Mandibulofacial dysostosis with ptosis, autosomal dominant</a></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_355264" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Mandibulofacial dysostosis-microcephaly syndrome</a></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_1641240" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Meier-Gorlin syndrome 1</a></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_1683985" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Mullegama-Klein-Martinez syndrome</a></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_924974" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Muscular dystrophy-dystroglycanopathy (congenital with brain and eye anomalies), type A1</a></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_120519" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Nager syndrome</a></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_67392" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Oculoauriculovertebral spectrum with radial defects</a></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_120514" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Pallister-Hall syndrome</a></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_355971" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Short stature-auditory canal atresia-mandibular hypoplasia-skeletal anomalies syndrome</a></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_66078" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Treacher Collins syndrome</a></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_1644627" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Van Maldergem syndrome 1</a></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_816205" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Van Maldergem syndrome 2</a></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_340946" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Visceral neuropathy, familial, 1, autosomal recessive</a></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_1677486" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Warburg-cinotti syndrome</a></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_1648389" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">X-linked external auditory canal atresia-dilated internal auditory canal-facial dysmorphism syndrome</a></div></span></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/38113773">Treatment of external auditory canal stenosis and atresia after transcanal endoscopic ear surgery.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Guo L,
Yang Y,
Liu J,
Su Y,
Cai Z</span><br />
<span class="medgenPMjournal">Am J Otolaryngol</span>
2024 Mar-Apr;45(2):104175.
Epub 2023 Dec 9
doi: 10.1016/j.amjoto.2023.104175.
<span class="bold">PMID: </span><a href="/pubmed/38113773" target="_blank">38113773</a></div>
<div class="nl"><a target="_blank" href="/pubmed/25142577">Indication criteria and outcomes with the Bonebridge transcutaneous bone-conduction implant.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Riss D,
Arnoldner C,
Baumgartner WD,
Blineder M,
Flak S,
Bachner A,
Gstoettner W,
Hamzavi JS</span><br />
<span class="medgenPMjournal">Laryngoscope</span>
2014 Dec;124(12):2802-6.
Epub 2014 Aug 20
doi: 10.1002/lary.24832.
<span class="bold">PMID: </span><a href="/pubmed/25142577" target="_blank">25142577</a></div>
<div class="nl"><a target="_blank" href="/pubmed/10890146">Diagnosis and management strategies in congenital atresia of the external auditory canal. Study Group on Otological Malformations and Hearing Impairment.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Declau F,
Cremers C,
Van de Heyning P</span><br />
<span class="medgenPMjournal">Br J Audiol</span>
1999 Oct;33(5):313-27.
doi: 10.3109/03005369909090115.
<span class="bold">PMID: </span><a href="/pubmed/10890146" target="_blank">10890146</a></div>
<div><a target="_blank" href="https://pubmed.ncbi.nlm.nih.gov/?term=(%22atresia%20of%20the%20external%20auditory%20canal%22%5Btiab%3A~0%5D)%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 (3)</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/38113773">Treatment of external auditory canal stenosis and atresia after transcanal endoscopic ear surgery.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Guo L,
Yang Y,
Liu J,
Su Y,
Cai Z</span><br />
<span class="medgenPMjournal">Am J Otolaryngol</span>
2024 Mar-Apr;45(2):104175.
Epub 2023 Dec 9
doi: 10.1016/j.amjoto.2023.104175.
<span class="bold">PMID: </span><a href="/pubmed/38113773" target="_blank">38113773</a></div>
<div class="nl"><a target="_blank" href="/pubmed/35125269">Hearing impairment and ear anomalies in craniofacial microsomia: a systematic review.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Rooijers W,
Tio PAE,
van der Schroeff MP,
Padwa BL,
Dunaway DJ,
Forrest CR,
Koudstaal MJ,
Caron CJJM</span><br />
<span class="medgenPMjournal">Int J Oral Maxillofac Surg</span>
2022 Oct;51(10):1296-1304.
Epub 2022 Feb 3
doi: 10.1016/j.ijom.2022.01.005.
<span class="bold">PMID: </span><a href="/pubmed/35125269" target="_blank">35125269</a></div>
<div class="nl"><a target="_blank" href="/pubmed/26381006">Management of Acquired Atresia of the External Auditory Canal.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Bajin MD,
Yılmaz T,
Günaydın RÖ,
Kuşçu O,
Sözen T,
Jafarov S</span><br />
<span class="medgenPMjournal">J Int Adv Otol</span>
2015 Aug;11(2):147-50.
doi: 10.5152/iao.2015.461.
<span class="bold">PMID: </span><a href="/pubmed/26381006" target="_blank">26381006</a></div>
<div class="nl"><a target="_blank" href="/pubmed/24662637">Acquired atresia of the external auditory canal: long-term clinical and audiometric results after surgery.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Dhooge I,
D'hoop M,
Loose D,
Acke F</span><br />
<span class="medgenPMjournal">Otol Neurotol</span>
2014 Aug;35(7):1196-200.
doi: 10.1097/MAO.0000000000000317.
<span class="bold">PMID: </span><a href="/pubmed/24662637" target="_blank">24662637</a></div>
<div class="nl"><a target="_blank" href="/pubmed/19548383">Acquired atresia of the external auditory canal: recurrence and long-term results.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Magliulo G</span><br />
<span class="medgenPMjournal">Ann Otol Rhinol Laryngol</span>
2009 May;118(5):345-9.
doi: 10.1177/000348940911800505.
<span class="bold">PMID: </span><a href="/pubmed/19548383" target="_blank">19548383</a></div>
<div><a target="_blank" href="https://pubmed.ncbi.nlm.nih.gov/?term=%22Atresia%20of%20the%20external%20auditory%20canal%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 (24)</a></div><h3 class="subhead">Diagnosis</h3>
<div class="nl"><a target="_blank" href="/pubmed/35125269">Hearing impairment and ear anomalies in craniofacial microsomia: a systematic review.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Rooijers W,
Tio PAE,
van der Schroeff MP,
Padwa BL,
Dunaway DJ,
Forrest CR,
Koudstaal MJ,
Caron CJJM</span><br />
<span class="medgenPMjournal">Int J Oral Maxillofac Surg</span>
2022 Oct;51(10):1296-1304.
Epub 2022 Feb 3
doi: 10.1016/j.ijom.2022.01.005.
<span class="bold">PMID: </span><a href="/pubmed/35125269" target="_blank">35125269</a></div>
<div class="nl"><a target="_blank" href="/pubmed/26381006">Management of Acquired Atresia of the External Auditory Canal.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Bajin MD,
Yılmaz T,
Günaydın RÖ,
Kuşçu O,
Sözen T,
Jafarov S</span><br />
<span class="medgenPMjournal">J Int Adv Otol</span>
2015 Aug;11(2):147-50.
doi: 10.5152/iao.2015.461.
<span class="bold">PMID: </span><a href="/pubmed/26381006" target="_blank">26381006</a></div>
<div class="nl"><a target="_blank" href="/pubmed/10890146">Diagnosis and management strategies in congenital atresia of the external auditory canal. Study Group on Otological Malformations and Hearing Impairment.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Declau F,
Cremers C,
Van de Heyning P</span><br />
<span class="medgenPMjournal">Br J Audiol</span>
1999 Oct;33(5):313-27.
doi: 10.3109/03005369909090115.
<span class="bold">PMID: </span><a href="/pubmed/10890146" target="_blank">10890146</a></div>
<div class="nl"><a target="_blank" href="/pubmed/10485140">Congenital atresia of the external auditory canal.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Deguine C,
Pulec JL</span><br />
<span class="medgenPMjournal">Ear Nose Throat J</span>
1999 Aug;78(8):528.
<span class="bold">PMID: </span><a href="/pubmed/10485140" target="_blank">10485140</a></div>
<div class="nl"><a target="_blank" href="/pubmed/5783439">Inner ear abnormalities in association with congenital atresia of the external auditory canal, including a case of Michel deformity.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Potter GD</span><br />
<span class="medgenPMjournal">Ann Otol Rhinol Laryngol</span>
1969 Jun;78(3):598-604.
doi: 10.1177/000348946907800315.
<span class="bold">PMID: </span><a href="/pubmed/5783439" target="_blank">5783439</a></div>
<div><a target="_blank" href="https://pubmed.ncbi.nlm.nih.gov/?term=%22Atresia%20of%20the%20external%20auditory%20canal%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 (21)</a></div><h3 class="subhead">Therapy</h3>
<div class="nl"><a target="_blank" href="/pubmed/26381006">Management of Acquired Atresia of the External Auditory Canal.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Bajin MD,
Yılmaz T,
Günaydın RÖ,
Kuşçu O,
Sözen T,
Jafarov S</span><br />
<span class="medgenPMjournal">J Int Adv Otol</span>
2015 Aug;11(2):147-50.
doi: 10.5152/iao.2015.461.
<span class="bold">PMID: </span><a href="/pubmed/26381006" target="_blank">26381006</a></div>
<div class="nl"><a target="_blank" href="/pubmed/18570296">Mycophenolate mofetil embryopathy may be dose and timing dependent.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Ang GS,
Simpson SA,
Reddy AR</span><br />
<span class="medgenPMjournal">Am J Med Genet A</span>
2008 Aug 1;146A(15):1963-6.
doi: 10.1002/ajmg.a.32420.
<span class="bold">PMID: </span><a href="/pubmed/18570296" target="_blank">18570296</a></div>
<div class="nl"><a target="_blank" href="/pubmed/16408556">Intraoperative use of mitomycin C in fibrous atresia of the external auditory canal.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Battelino S,
Hocevar-Boltezar I,
Zargi M</span><br />
<span class="medgenPMjournal">Ear Nose Throat J</span>
2005 Dec;84(12):776-9.
<span class="bold">PMID: </span><a href="/pubmed/16408556" target="_blank">16408556</a></div>
<div class="nl"><a target="_blank" href="/pubmed/10200142">Prenatal and postnatal histories of very low birthweight infants who developed hepatoblastoma.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Maruyama K,
Ikeda H,
Koizumi T,
Tsuchida Y</span><br />
<span class="medgenPMjournal">Pediatr Int</span>
1999 Feb;41(1):82-9.
doi: 10.1046/j.1442-200x.1999.01022.x.
<span class="bold">PMID: </span><a href="/pubmed/10200142" target="_blank">10200142</a></div>
<div class="nl"><a target="_blank" href="/pubmed/2126133">Surgical approaches to congenital atresia of the external auditory canal.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Molony TB,
de la Cruz A</span><br />
<span class="medgenPMjournal">Otolaryngol Head Neck Surg</span>
1990 Dec;103(6):991-1001.
doi: 10.1177/019459989010300618.
<span class="bold">PMID: </span><a href="/pubmed/2126133" target="_blank">2126133</a></div>
<div><a target="_blank" href="https://pubmed.ncbi.nlm.nih.gov/?term=%22Atresia%20of%20the%20external%20auditory%20canal%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 (5)</a></div><h3 class="subhead">Prognosis</h3>
<div class="nl"><a target="_blank" href="/pubmed/35238286">Thiersch graft follow-up with narrow band imaging for acquired atresia of the external auditory canal: Canaloplasty with Thiersch graft versus vascularization evaluated with narrow band imaging.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Pace A,
Rossetti V,
Visconti IC,
Milani A,
Iannella G,
Maniaci A,
Cocuzza S,
Magliulo G</span><br />
<span class="medgenPMjournal">Bosn J Basic Med Sci</span>
2022 Sep 16;22(5):798-802.
doi: 10.17305/bjbms.2021.6876.
<span class="bold">PMID: </span><a href="/pubmed/35238286" target="_blank">35238286</a><a href="/pmc/articles/PMC9519157" target="_blank" class="PubMedFree">Free PMC Article</a></div>
<div class="nl"><a target="_blank" href="/pubmed/29852809">Acquired stenosis of the external auditory canal - long-term results and patient satisfaction.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Schwarz D,
Luers JC,
Huttenbrink KB,
Stuermer KJ</span><br />
<span class="medgenPMjournal">Acta Otolaryngol</span>
2018 Sep;138(9):790-794.
Epub 2018 May 31
doi: 10.1080/00016489.2018.1476779.
<span class="bold">PMID: </span><a href="/pubmed/29852809" target="_blank">29852809</a></div>
<div class="nl"><a target="_blank" href="/pubmed/25142577">Indication criteria and outcomes with the Bonebridge transcutaneous bone-conduction implant.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Riss D,
Arnoldner C,
Baumgartner WD,
Blineder M,
Flak S,
Bachner A,
Gstoettner W,
Hamzavi JS</span><br />
<span class="medgenPMjournal">Laryngoscope</span>
2014 Dec;124(12):2802-6.
Epub 2014 Aug 20
doi: 10.1002/lary.24832.
<span class="bold">PMID: </span><a href="/pubmed/25142577" target="_blank">25142577</a></div>
<div class="nl"><a target="_blank" href="/pubmed/24662637">Acquired atresia of the external auditory canal: long-term clinical and audiometric results after surgery.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Dhooge I,
D'hoop M,
Loose D,
Acke F</span><br />
<span class="medgenPMjournal">Otol Neurotol</span>
2014 Aug;35(7):1196-200.
doi: 10.1097/MAO.0000000000000317.
<span class="bold">PMID: </span><a href="/pubmed/24662637" target="_blank">24662637</a></div>
<div class="nl"><a target="_blank" href="/pubmed/8427677">Acquired atresia of the external auditory canal. Surgical treatment and results.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Cremers WR,
Smeets JH</span><br />
<span class="medgenPMjournal">Arch Otolaryngol Head Neck Surg</span>
1993 Feb;119(2):162-4.
doi: 10.1001/archotol.1993.01880140044007.
<span class="bold">PMID: </span><a href="/pubmed/8427677" target="_blank">8427677</a></div>
<div><a target="_blank" href="https://pubmed.ncbi.nlm.nih.gov/?term=%22Atresia%20of%20the%20external%20auditory%20canal%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 (12)</a></div><h3 class="subhead">Clinical prediction guides</h3>
<div class="nl"><a target="_blank" href="/pubmed/29852809">Acquired stenosis of the external auditory canal - long-term results and patient satisfaction.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Schwarz D,
Luers JC,
Huttenbrink KB,
Stuermer KJ</span><br />
<span class="medgenPMjournal">Acta Otolaryngol</span>
2018 Sep;138(9):790-794.
Epub 2018 May 31
doi: 10.1080/00016489.2018.1476779.
<span class="bold">PMID: </span><a href="/pubmed/29852809" target="_blank">29852809</a></div>
<div class="nl"><a target="_blank" href="/pubmed/25142577">Indication criteria and outcomes with the Bonebridge transcutaneous bone-conduction implant.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Riss D,
Arnoldner C,
Baumgartner WD,
Blineder M,
Flak S,
Bachner A,
Gstoettner W,
Hamzavi JS</span><br />
<span class="medgenPMjournal">Laryngoscope</span>
2014 Dec;124(12):2802-6.
Epub 2014 Aug 20
doi: 10.1002/lary.24832.
<span class="bold">PMID: </span><a href="/pubmed/25142577" target="_blank">25142577</a></div>
<div class="nl"><a target="_blank" href="/pubmed/24406574">Treatment strategy in Goldenhar syndrome.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Bogusiak K,
Arkuszewski P,
Skorek-Stachnik K,
Kozakiewicz M</span><br />
<span class="medgenPMjournal">J Craniofac Surg</span>
2014 Jan;25(1):177-83.
doi: 10.1097/SCS.0000000000000387.
<span class="bold">PMID: </span><a href="/pubmed/24406574" target="_blank">24406574</a></div>
<div class="nl"><a target="_blank" href="/pubmed/19548383">Acquired atresia of the external auditory canal: recurrence and long-term results.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Magliulo G</span><br />
<span class="medgenPMjournal">Ann Otol Rhinol Laryngol</span>
2009 May;118(5):345-9.
doi: 10.1177/000348940911800505.
<span class="bold">PMID: </span><a href="/pubmed/19548383" target="_blank">19548383</a></div>
<div class="nl"><a target="_blank" href="/pubmed/5642485">Some radiographic and clinical observations in bony atresia of the external auditory canal.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Brucher JA,
Rumbaugh CL,
Stroud MH</span><br />
<span class="medgenPMjournal">Laryngoscope</span>
1968 Feb;78(2):216-26.
doi: 10.1288/00005537-196802000-00003.
<span class="bold">PMID: </span><a href="/pubmed/5642485" target="_blank">5642485</a></div>
<div><a target="_blank" href="https://pubmed.ncbi.nlm.nih.gov/?term=%22Atresia%20of%20the%20external%20auditory%20canal%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 (9)</a></div></div>
</div>
<div class="portlet mgSection" id="ID_104">
<div class="portlet_head mgSectionHead ui-widget-header"><h1 class="nl" id="Recent_systematic_reviews">Recent systematic reviews</h1><a sid="104" href="#" class="portlet_shutter" title="Show/hide content"></a></div>
<div class="portlet_content ln">
<div class="nl"><a target="_blank" href="/pubmed/35125269">Hearing impairment and ear anomalies in craniofacial microsomia: a systematic review.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Rooijers W,
Tio PAE,
van der Schroeff MP,
Padwa BL,
Dunaway DJ,
Forrest CR,
Koudstaal MJ,
Caron CJJM</span><br />
<span class="medgenPMjournal">Int J Oral Maxillofac Surg</span>
2022 Oct;51(10):1296-1304.
Epub 2022 Feb 3
doi: 10.1016/j.ijom.2022.01.005.
<span class="bold">PMID: </span><a href="/pubmed/35125269" target="_blank">35125269</a></div>
<div><a target="_blank" href="https://pubmed.ncbi.nlm.nih.gov/?term=%22Atresia%20of%20the%20external%20auditory%20canal%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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<h2 class="offscreen_noflow">Supplemental Content</h2>
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<div class="portlet mgSection" id="ID_113">
<div class="portlet_head mgSectionHead ui-widget-header"><h1 class="nl" id="Table_of_contents">Table of contents</h1><a sid="113" href="#" class="portlet_shutter" title="Show/hide content"></a></div>
<div class="portlet_content ln"><ul id="my-toc"></ul></div>
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