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<meta name="keywords" content="C0078982, arhinencephalies, arhinencephaly, arrhinencephaly, congenital abnormality, 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="A defect of development of the brain characterized by congenital absence of the part of the brain that includes the olfactory bulbs, tracts, and other structures associated with the sense of smell." /><meta name="robots" content="index,nofollow,noarchive" />
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<title>Arrhinencephaly (Concept Id: C0078982)
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<!--
UID=36258
ConceptID=C0078982
-->
<!--imgCountBooks = 0--><h1 class="medgenTitle"><div class="MedGenTitleText">Arrhinencephaly</div></h1><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>36258</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.">C0078982</a></dd><dt><span class="dotprefix"></span></dt><dd>Congenital Abnormality</dd></dl></div></div><table class="medgenTable"><tbody><tr><td>Synonyms:</td>
<td>Arhinencephalies; Arhinencephaly</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:0002139">HP:0002139</a></td></tr>
<tr><td>OMIM<span class="superscript">®</span>:</td>
<td><a href="https://omim.org/entry/236100" target="_blank">236100</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">A defect of development of the brain characterized by congenital absence of the part of the brain that includes the olfactory bulbs, tracts, and other structures associated with the sense of smell. [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 mgSection" id="ID_118">
<div class="portlet_head mgSectionHead ui-widget-header"><h1 class="nl" id="Term_Hierarchy">Term Hierarchy</h1><a sid="118" href="#" class="portlet_shutter" title="Show/hide content"></a></div>
<div class="portlet_content ln HierarchyGTR"><div class="jig-ncbitabs"><ul><li><a href="#tabGTR">GTR</a></li><li><a href="#tabMGEN">MeSH</a></li></ul><div id="tabGTR"><div class="search_result"><div class="rprts"><div class="chiclet_legend"><span class="chiclet_list" style="position:static;"><span title="Clinical test" class="chiclet Ccolor round">C</span><span>Clinical test,  </span><span title="Research test" class="chiclet Rcolor round">R</span><span>Research test,  </span><span title="OMIM" class="chiclet Ocolor ">O</span><span>OMIM,  </span><span title="GeneReview" class="chiclet Gcolor">G</span><span><em>GeneReviews</em>,  </span><span title="ClinVar" class="chiclet Vcolor">V</span><span>ClinVar  </span></span></div><div id="hierarchy" class="margin_t1"><div class="ds_tree"><ul><li class="matched_ds"><span class="chiclet_list"><span class="chiclet unavailable round" title="Clinical test">C</span><span class="chiclet unavailable round" title="Research Tests">R</span><span class="chiclet Ocolor" title="OMIM"><a ref="ncbi_uid=36258" target="_blank" href="/omim/236100">O</a></span><span class="chiclet unavailable" title="GeneReviews">G</span><span class="chiclet unavailable" title="ClinVar">V</span></span><span class="TLline">Arrhinencephaly</span></li></ul></div></div></div></div></div><div id="tabMGEN"><div class="ds_tree"><ul><li><span class="TLline"><a href="/medgen/474891" ref="tree=MeSH" title="MedGen record for Congenital Systemic Disorder">Congenital Systemic Disorder</a></span><ul><li><span class="TLline"><a href="/medgen/105425" ref="tree=MeSH" title="MedGen record for Abnormality of the nervous system">Abnormality of the nervous system</a></span><ul><li><span class="TLline"><a href="/medgen/868416" ref="tree=MeSH" title="MedGen record for Abnormal nervous system morphology">Abnormal nervous system morphology</a></span><ul><li><span class="TLline"><a href="/medgen/892343" ref="tree=MeSH" title="MedGen record for Morphological central nervous system abnormality">Morphological central nervous system abnormality</a></span><ul><li><span class="TLline"><a href="/medgen/866738" ref="tree=MeSH" title="MedGen record for Abnormal brain morphology">Abnormal brain morphology</a></span><ul><li><span class="TLline"><a href="/medgen/866620" ref="tree=MeSH" title="MedGen record for Abnormal forebrain morphology">Abnormal forebrain morphology</a></span><ul><li><span class="matched_ds">Arrhinencephaly</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_65088"><div><strong>Fryns syndrome</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>65088</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.">C0220730</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Fryns syndrome is characterized by diaphragmatic defects (diaphragmatic hernia, eventration, hypoplasia, or agenesis); characteristic facial appearance (coarse facies, wide-set eyes, a wide and depressed nasal bridge with a broad nasal tip, long philtrum, low-set and anomalous ears, tented vermilion of the upper lip, wide mouth, and a small jaw); short distal phalanges of the fingers and toes (the nails may also be small); pulmonary hypoplasia; and associated anomalies (polyhydramnios, cloudy corneas and/or microphthalmia, orofacial clefting, renal dysplasia / renal cortical cysts, and/or malformations involving the brain, cardiovascular system, gastrointestinal system, and/or genitalia). Survival beyond the neonatal period is rare. Data on postnatal growth and psychomotor development are limited; however, severe developmental delay and intellectual disability are common.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/65088">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_75567"><div><strong>CHARGE syndrome</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>75567</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.">C0265354</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">CHD7 disorder encompasses the entire phenotypic spectrum of heterozygous CHD7 pathogenic variants that includes CHARGE syndrome as well as subsets of features that comprise the CHARGE syndrome phenotype. The mnemonic CHARGE syndrome, introduced in the premolecular era, stands for coloboma, heart defect, choanal atresia, retarded growth and development, genital hypoplasia, ear anomalies (including deafness). Following the identification of the genetic cause of CHD7 disorder, the phenotypic spectrum expanded to include cranial nerve anomalies, vestibular defects, cleft lip and/or palate, hypothyroidism, tracheoesophageal anomalies, brain anomalies, seizures, and renal anomalies. Life expectancy highly depends on the severity of manifestations; mortality can be high in the first few years when severe birth defects (particularly complex heart defects) are present and often complicated by airway and feeding issues. In childhood, adolescence, and adulthood, decreased life expectancy is likely related to a combination of residual heart defects, infections, aspiration or choking, respiratory issues including obstructive and central apnea, and possibly seizures. Despite these complications, the life expectancy for many individuals can be normal.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/75567">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_341166"><div><strong>Fetal akinesia syndrome, X-linked</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>341166</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.">C1848171</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/341166">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_343455"><div><strong>Hydrolethalus syndrome 1</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>343455</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.">C1856016</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Hydrolethalus-1 (HLS1) is an autosomal recessive lethal malformation syndrome characterized by hydrocephaly with absent upper midline structures of the brain, micrognathia, and polydactyly. Various other features such as cleft lip or palate, club feet, anomalies of the ears, eyes, and nose, keyhole-shaped defect in the occipital bone, abnormal genitalia, and congenital heart and respiratory organ defects have also been observed in affected individuals. Affected individuals are stillborn or die shortly after birth (summary by Mee et al., 2005).&#13; Genetic Heterogeneity of Hydrolethalus Syndrome&#13; See also HLS2 (614120), caused by mutation in the KIF7 gene (611254) on chromosome 15q26.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/343455">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_341818"><div><strong>Yunis-Varon syndrome</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>341818</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.">C1857663</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Yunis-Varon syndrome (YVS) is a severe autosomal recessive disorder characterized by skeletal defects, including cleidocranial dysplasia and digital anomalies, and severe neurologic involvement with neuronal loss. Enlarged cytoplasmic vacuoles are found in neurons, muscle, and cartilage. The disorder is usually lethal in infancy (summary by Campeau et al., 2013).</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/341818">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_411200"><div><strong>Orofaciodigital syndrome type 6</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>411200</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.">C2745997</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Orofaciodigital syndrome type VI (OFD6), or Varadi syndrome, is a rare autosomal recessive disorder distinguished from other orofaciodigital syndromes by metacarpal abnormalities with central polydactyly and by cerebellar abnormalities, including the molar tooth sign (summary by Doss et al., 1998 and Lopez et al., 2014).</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/411200">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_477139"><div><strong>Multiple congenital anomalies-hypotonia-seizures syndrome 2</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>477139</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.">C3275508</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Multiple congenital anomalies-hypotonia-seizures syndrome-2 (MCAHS2) is an X-linked recessive neurodevelopmental disorder characterized by dysmorphic features, neonatal hypotonia, early-onset myoclonic seizures, and variable congenital anomalies involving the central nervous, cardiac, and urinary systems. Some affected individuals die in infancy (summary by Johnston et al., 2012). The phenotype shows clinical variability with regard to severity and extraneurologic features. However, most patients present in infancy with early-onset epileptic encephalopathy associated with developmental arrest and subsequent severe neurologic disability; these features are consistent with a form of developmental and epileptic encephalopathy (DEE) (summary by Belet et al., 2014, Kato et al., 2014). The disorder is caused by a defect in glycosylphosphatidylinositol (GPI) biosynthesis.&#13; For a discussion of genetic heterogeneity of MCAHS, see MCAHS1 (614080).&#13; For a discussion of nomenclature and genetic heterogeneity of DEE, see 308350.&#13; For a discussion of genetic heterogeneity of GPI biosynthesis defects, see GPIBD1 (610293).</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/477139">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_766672"><div><strong>Joubert syndrome 18</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>766672</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.">C3553758</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Classic Joubert syndrome (JS) is characterized by three primary findings: A distinctive cerebellar and brain stem malformation called the molar tooth sign (MTS). Hypotonia. Developmental delays. Often these findings are accompanied by episodic tachypnea or apnea and/or atypical eye movements. In general, the breathing abnormalities improve with age, truncal ataxia develops over time, and acquisition of gross motor milestones is delayed. Cognitive abilities are variable, ranging from severe intellectual disability to normal. Additional findings can include retinal dystrophy, renal disease, ocular colobomas, occipital encephalocele, hepatic fibrosis, polydactyly, oral hamartomas, and endocrine abnormalities. Both intra- and interfamilial variation are seen.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/766672">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_864138"><div><strong>Lethal fetal cerebrorenogenitourinary agenesis/hypoplasia syndrome</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>864138</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.">C4015701</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">A rare genetic developmental defect during embryogenesis malformation syndrome with characteristics of intrauterine growth restriction, flexion arthrogryposis of all joints, severe microcephaly, renal cystic dysplasia/agenesis/hypoplasia and complex malformations of the brain (cerebral and cerebellar hypoplasia, vermis, corpus callosum and/or occipital lobe agenesis, with or without arhinencephaly), as well as of the genitourinary tract (ureteral agenesis/hypoplasia, uterine hypoplasia and/or vaginal atresia), leading to fetal demise.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/864138">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_1641618"><div><strong>Microcephaly 20, primary, autosomal recessive</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>1641618</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.">C4693572</a></dd><dt><span class="dotprefix"></span></dt><dd>Congenital Abnormality</dd></dl></div></div></div>
<div class="spaceAbove nowrap">See: <a href="/medgen/1641618">Condition Record</a></div></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_75567" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">CHARGE syndrome</a></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_341166" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Fetal akinesia syndrome, X-linked</a></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_65088" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Fryns syndrome</a></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_343455" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Hydrolethalus syndrome 1</a></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_766672" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Joubert syndrome 18</a></div><div class="jig-moreless" data-jigconfig="class: 'moveDown', moreText: 'See full list (10)', lessText: 'Show less', nodeBefore: 0"><span id="clinMore">
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_864138" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Lethal fetal cerebrorenogenitourinary agenesis/hypoplasia syndrome</a></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_1641618" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Microcephaly 20, primary, autosomal recessive</a></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_477139" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Multiple congenital anomalies-hypotonia-seizures syndrome 2</a></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_411200" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Orofaciodigital syndrome type 6</a></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_341818" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Yunis-Varon 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/29770996">Prenatal diagnosis of holoprosencephaly.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Kousa YA,
du Plessis AJ,
Vezina G</span><br />
<span class="medgenPMjournal">Am J Med Genet C Semin Med Genet</span>
2018 Jun;178(2):206-213.
Epub 2018 May 17
doi: 10.1002/ajmg.c.31618.
<span class="bold">PMID: </span><a href="/pubmed/29770996" target="_blank">29770996</a></div>
<div class="nl"><a target="_blank" href="/pubmed/24754790">Cyclopamine: from cyclops lambs to cancer treatment.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Lee ST,
Welch KD,
Panter KE,
Gardner DR,
Garrossian M,
Chang CW</span><br />
<span class="medgenPMjournal">J Agric Food Chem</span>
2014 Jul 30;62(30):7355-62.
Epub 2014 Apr 22
doi: 10.1021/jf5005622.
<span class="bold">PMID: </span><a href="/pubmed/24754790" target="_blank">24754790</a></div>
<div class="nl"><a target="_blank" href="/pubmed/3548385">Reliable criteria for the prenatal sonographic diagnosis of alobar holoprosencephaly.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Greene MF,
Benacerraf BR,
Frigoletto FD Jr</span><br />
<span class="medgenPMjournal">Am J Obstet Gynecol</span>
1987 Mar;156(3):687-9.
doi: 10.1016/0002-9378(87)90078-0.
<span class="bold">PMID: </span><a href="/pubmed/3548385" target="_blank">3548385</a></div>
<div><a target="_blank" href="https://pubmed.ncbi.nlm.nih.gov/?term=(arrhinencephaly)%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 (70)</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/17001700">Holoprosencephaly: clinical, anatomic, and molecular dimensions.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Cohen MM Jr</span><br />
<span class="medgenPMjournal">Birth Defects Res A Clin Mol Teratol</span>
2006 Sep;76(9):658-73.
doi: 10.1002/bdra.20295.
<span class="bold">PMID: </span><a href="/pubmed/17001700" target="_blank">17001700</a></div>
<div class="nl"><a target="_blank" href="/pubmed/15793832">Acrofacial dysostosis type Rodríguez.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Dimitrov B,
Balikova I,
Jekova N,
Vakrilova L,
Fryns JP,
Simeonov E</span><br />
<span class="medgenPMjournal">Am J Med Genet A</span>
2005 May 15;135(1):81-5.
doi: 10.1002/ajmg.a.30673.
<span class="bold">PMID: </span><a href="/pubmed/15793832" target="_blank">15793832</a></div>
<div class="nl"><a target="_blank" href="/pubmed/12400073">Prenatal diagnosis and confirmation of the acrofacial dysostosis syndrome type Rodriguez.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Wessels MW,
Den Hollander NS,
Cohen-Overbeek TE,
Lesnik Oberstein MS,
Nash RM,
Wladimiroff JW,
Niermeijer MF,
Willems PJ</span><br />
<span class="medgenPMjournal">Am J Med Genet</span>
2002 Nov 15;113(1):97-100.
doi: 10.1002/ajmg.10729.
<span class="bold">PMID: </span><a href="/pubmed/12400073" target="_blank">12400073</a></div>
<div class="nl"><a target="_blank" href="/pubmed/6886905">Hypoplastic right-sided heart complex: a cluster of cases with associated congenital birth defects. A new syndrome?</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Baetz-Greenwalt B,
Ratliff NB,
Moodie DS</span><br />
<span class="medgenPMjournal">J Pediatr</span>
1983 Sep;103(3):399-401.
doi: 10.1016/s0022-3476(83)80411-9.
<span class="bold">PMID: </span><a href="/pubmed/6886905" target="_blank">6886905</a></div>
<div class="nl"><a target="_blank" href="/pubmed/5653872">Arrhinencephaly associated with a deficiency involving chromosome 18.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">McDermott A,
Insley J,
Barton ME,
Roowe P,
Edwards JH,
Cameron AH</span><br />
<span class="medgenPMjournal">J Med Genet</span>
1968 Mar;5(1):60-7.
doi: 10.1136/jmg.5.1.60.
<span class="bold">PMID: </span><a href="/pubmed/5653872" target="_blank">5653872</a><a href="/pmc/articles/PMC1468608" target="_blank" class="PubMedFree">Free PMC Article</a></div>
<div><a target="_blank" href="https://pubmed.ncbi.nlm.nih.gov/?term=%22Arrhinencephaly%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 (6)</a></div><h3 class="subhead">Diagnosis</h3>
<div class="nl"><a target="_blank" href="/pubmed/12673637">Unusual case of a fetus with congenital cystic adenomatoid malformation of the lung associated with trisomy 13.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Heling KS,
Tennstedt C,
Chaoui R</span><br />
<span class="medgenPMjournal">Prenat Diagn</span>
2003 Apr;23(4):315-8.
doi: 10.1002/pd.580.
<span class="bold">PMID: </span><a href="/pubmed/12673637" target="_blank">12673637</a></div>
<div class="nl"><a target="_blank" href="/pubmed/12494439">Documentation of anomalies not previously described in Fryns syndrome.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Arnold SR,
Debich-Spicer D D,
Opitz JM,
Gilbert-Barness E</span><br />
<span class="medgenPMjournal">Am J Med Genet A</span>
2003 Jan 15;116A(2):179-82; discussion 183.
doi: 10.1002/ajmg.a.10763.
<span class="bold">PMID: </span><a href="/pubmed/12494439" target="_blank">12494439</a></div>
<div class="nl"><a target="_blank" href="/pubmed/8160731">Adams Oliver syndrome: a family with extreme variability in clinical expression.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Bamforth JS,
Kaurah P,
Byrne J,
Ferreira P</span><br />
<span class="medgenPMjournal">Am J Med Genet</span>
1994 Feb 15;49(4):393-6.
doi: 10.1002/ajmg.1320490408.
<span class="bold">PMID: </span><a href="/pubmed/8160731" target="_blank">8160731</a></div>
<div class="nl"><a target="_blank" href="/pubmed/4443990">Prenatal detection of D trisomy.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Laurence KM,
Gregory PJ,
Sharp F</span><br />
<span class="medgenPMjournal">J Med Genet</span>
1974 Dec;11(4):398-400.
doi: 10.1136/jmg.11.4.398.
<span class="bold">PMID: </span><a href="/pubmed/4443990" target="_blank">4443990</a><a href="/pmc/articles/PMC1013217" target="_blank" class="PubMedFree">Free PMC Article</a></div>
<div class="nl"><a target="_blank" href="/pubmed/4129972">Antenatal diagnosis of Patau's syndrome (trisomy 13) including a detailed pathological study of the fetus.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Butler LJ,
Reiss HE,
France NE,
Briddon S</span><br />
<span class="medgenPMjournal">J Med Genet</span>
1973 Dec;10(4):367-70.
doi: 10.1136/jmg.10.4.367.
<span class="bold">PMID: </span><a href="/pubmed/4129972" target="_blank">4129972</a><a href="/pmc/articles/PMC1013058" target="_blank" class="PubMedFree">Free PMC Article</a></div>
<div><a target="_blank" href="https://pubmed.ncbi.nlm.nih.gov/?term=%22Arrhinencephaly%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 (9)</a></div><h3 class="subhead">Prognosis</h3>
<div class="nl"><a target="_blank" href="/pubmed/21671374">Methotrexate and misoprostol teratogenicity: further expansion of the clinical manifestations.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Kozma C,
Ramasethu J</span><br />
<span class="medgenPMjournal">Am J Med Genet A</span>
2011 Jul;155A(7):1723-8.
Epub 2011 Jun 10
doi: 10.1002/ajmg.a.34037.
<span class="bold">PMID: </span><a href="/pubmed/21671374" target="_blank">21671374</a></div>
<div class="nl"><a target="_blank" href="/pubmed/19227428">A well-documented trisomy 13 case presenting with a number of common and uncommon features of the syndrome.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Balci S,
Güçer S,
Orhan D,
Karagöz T</span><br />
<span class="medgenPMjournal">Turk J Pediatr</span>
2008 Nov-Dec;50(6):595-9.
<span class="bold">PMID: </span><a href="/pubmed/19227428" target="_blank">19227428</a></div>
<div class="nl"><a target="_blank" href="/pubmed/15793832">Acrofacial dysostosis type Rodríguez.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Dimitrov B,
Balikova I,
Jekova N,
Vakrilova L,
Fryns JP,
Simeonov E</span><br />
<span class="medgenPMjournal">Am J Med Genet A</span>
2005 May 15;135(1):81-5.
doi: 10.1002/ajmg.a.30673.
<span class="bold">PMID: </span><a href="/pubmed/15793832" target="_blank">15793832</a></div>
<div class="nl"><a target="_blank" href="/pubmed/12673637">Unusual case of a fetus with congenital cystic adenomatoid malformation of the lung associated with trisomy 13.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Heling KS,
Tennstedt C,
Chaoui R</span><br />
<span class="medgenPMjournal">Prenat Diagn</span>
2003 Apr;23(4):315-8.
doi: 10.1002/pd.580.
<span class="bold">PMID: </span><a href="/pubmed/12673637" target="_blank">12673637</a></div>
<div class="nl"><a target="_blank" href="/pubmed/12494439">Documentation of anomalies not previously described in Fryns syndrome.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Arnold SR,
Debich-Spicer D D,
Opitz JM,
Gilbert-Barness E</span><br />
<span class="medgenPMjournal">Am J Med Genet A</span>
2003 Jan 15;116A(2):179-82; discussion 183.
doi: 10.1002/ajmg.a.10763.
<span class="bold">PMID: </span><a href="/pubmed/12494439" target="_blank">12494439</a></div>
<div><a target="_blank" href="https://pubmed.ncbi.nlm.nih.gov/?term=%22Arrhinencephaly%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 (5)</a></div><h3 class="subhead">Clinical prediction guides</h3>
<div class="nl"><a target="_blank" href="/pubmed/20940512">Defective migration of neuroendocrine GnRH cells in human arrhinencephalic conditions.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Teixeira L,
Guimiot F,
Dodé C,
Fallet-Bianco C,
Millar RP,
Delezoide AL,
Hardelin JP</span><br />
<span class="medgenPMjournal">J Clin Invest</span>
2010 Oct;120(10):3668-72.
doi: 10.1172/JCI43699.
<span class="bold">PMID: </span><a href="/pubmed/20940512" target="_blank">20940512</a><a href="/pmc/articles/PMC2947242" target="_blank" class="PubMedFree">Free PMC Article</a></div>
<div class="nl"><a target="_blank" href="/pubmed/10521829">Prenatal diagnosis of partial trisomy 3p(3p23--&gt;pter) and monosomy 7q(7q36--&gt;qter) in a fetus with microcephaly alobar holoprosencephaly and cyclopia.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Chen CP,
Devriendt K,
Lee CC,
Chen WL,
Wang W,
Wang TY</span><br />
<span class="medgenPMjournal">Prenat Diagn</span>
1999 Oct;19(10):986-9.
<span class="bold">PMID: </span><a href="/pubmed/10521829" target="_blank">10521829</a></div>
<div class="nl"><a target="_blank" href="/pubmed/3130851">Newborn infant with del(9)(pter----q32:) and multiple congenital anomalies including arrhinencephaly, cardiac malformations, and rudimentary ears.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Kargas SA,
Kargas GA,
Chandra S,
Wu SQ,
Meisner LF</span><br />
<span class="medgenPMjournal">Am J Med Genet Suppl</span>
1987;3:161-6.
doi: 10.1002/ajmg.1320280520.
<span class="bold">PMID: </span><a href="/pubmed/3130851" target="_blank">3130851</a></div>
<div class="nl"><a target="_blank" href="/pubmed/598834">18p--syndrome resulting from 14q/18q 'dicentric' fusion translocation.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Funderburk SJ,
Sparkes RS,
Klisak I</span><br />
<span class="medgenPMjournal">Hum Genet</span>
1977 Nov 10;39(2):243-50.
doi: 10.1007/BF00287020.
<span class="bold">PMID: </span><a href="/pubmed/598834" target="_blank">598834</a></div>
<div><a target="_blank" href="https://pubmed.ncbi.nlm.nih.gov/?term=%22Arrhinencephaly%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 (4)</a></div></div>
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<div class="portlet_content ln"><ul class="a_poppers"><li><a target="_blank" href="https://pubmed.ncbi.nlm.nih.gov/?term=(arrhinencephaly)%20AND%20(%22english%20and%20humans%22%5BFilter%5D)%20AND%20(%20(%22practice%20guideline%22%5BFilter%5D)%20OR%20(practice*%5Btitl%5D%20AND%20(guideline%5Btitl%5D%20OR%20parameter%5Btitl%5D%20OR%20resource%5Btitl%5D%20OR%20bulletin%5Btitl%5D%20OR%20best%5Btitl%5D))%20OR%20(genetic*%5Btitl%5D%20AND%20(evaluation%5Btitl%5D%20OR%20counseling%5Btitl%5D%20OR%20screening%5Btitl%5D%20OR%20test*%5Btitl%5D))%20OR%20(clinical%5Btitl%5D%20AND%20((expert%5Btitl%5D%20AND%20consensus%5Btitl%5D)%20OR%20utility%5Btitl%5D%20OR%20guideline*%5Btitl%5D))%20OR%20(management%5Btitl%5D%20AND%20(clinical%5Btitl%5D%20OR%20diagnos*%5Btitl%5D%20OR%20recommendation%5Btitl%5D%20OR%20pain%5Btitl%5D%20OR%20surveillance%5Btitl%5D%20OR%20emergency%5Btitl%5D%20OR%20guideline*%5Btitl%5D%20OR%20therap*))%20OR%20(treatment%5Btitl%5D%20AND%20((evaluation%5Btitl%5D%20AND%20diagnosis%5Btitl%5D)%20OR%20(assessment%5Btitl%5D%20AND%20prevention%5Btitl%5D)%20OR%20therap*))%20OR%20(Diagnos*%5Btitl%5D%20AND%20(prenatal%5Btitl%5D%20OR%20treatment%5Btitl%5D%20OR%20follow-up%5Btitl%5D%20OR%20statement%5Btitl%5D%20OR%20criteria%5Btitl%5D%20OR%20newborn%5Btitl%5D%20OR%20differential%5Btitl%5D%20OR%20neonatal%5Btitl%5D%20OR%20neonate%5Btitl%5D))%20OR%20(guideline*%5Btitl%5D%20AND%20(pharmacogenetic*%5Btitl%5D%20OR%20recommendation%5Btitl%5D%20OR%20therap*%5Btitl%5D%20OR%20evidence-based%5Btitl%5D%20OR%20consensus%5Btitl%5D%20OR%20(technical%5Btitl%5D%20AND%20standard*%5Btitl%5D)%20OR%20(molecular%5Btitl%5D%20AND%20testing%5Btitl%5D)))%20OR%20(risk%5Btitl%5D%20AND%20assessment%5Btitl%5D)%20OR%20(recommendation*%5Btitl%5D%20AND%20(statement%5Btitl%5D%20OR%20Evidence-based%5Btitl%5D%20OR%20Consensus%5Btitl%5D))%20OR%20(care%20AND%20((Patient%5Btitl%5D%20AND%20standard*%5Btitl%5D)%20OR%20primary%5Btitl%5D%20OR%20psychosocial%5Btitl%5D))%20OR%20(Health%5Btitl%5D%20AND%20supervision%5Btitl%5D)%20OR%20(statement%5Btitl%5D%20AND%20(policy%5Btitl%5D%20OR%20position%5Btitl%5D%20OR%20Consensus%5Btitl%5D))%20OR%20(pharmacogenetics%5Btitl%5D%20AND%20(Dosing%5Btitl%5D%20OR%20therap*%5Btitl%5D%20OR%20genotype*%5Btitl%5D%20OR%20drug*%5Btitl%5D))%20OR%20(Chemotherapy%5Btitl%5D%20AND%20decision*%5Btitl%5D)%20OR%20(screening%5Btitl%5D%20AND%20(newborn%5Btitl%5D%20OR%20neonat*%5Btitl%5D%20OR%20detection%5Btitl%5D%20OR%20diagnos*%5Btitl%5D))%20OR%20(criteria%5Btitl%5D%20OR%20genotype*%5Btitl%5D)%20)%20NOT%20(%22Case%20reports%22%5BPublication%20type%5D%20OR%20%22clinical%20study%22%5BPublication%20Type%5D%20OR%20%22randomized%20controlled%20trial%22%5BPublication%20Type%5D)" title="PubMed search">PubMed</a><div class="help-popup">See practice and clinical guidelines in PubMed. The search results may include broader topics and may not capture all published guidelines. See the <a href="/medgen/docs/faq/" title="Frequently asked questions" target="_blank">FAQ</a> for details.</div></li><li><a target="_blank" href="/books/?term=((%22clinical%20guidelines%22%5BResource%20Type%5D)%20OR%20%22practice%20guideline%22%5BPublication%20Type%5D)%20AND%20(%22Arrhinencephaly%22)">Bookshelf</a><div class="help-popup">See practice and clinical guidelines in NCBI Bookshelf. The search results may include broader topics and may not capture all published guidelines. See the <a href="/medgen/docs/faq/" title="Frequently asked questions" target="_blank">FAQ</a> for details.</div></li></ul></div>
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