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<meta name="keywords" content="C2936904, bbbg1, formerly, disease or syndrome, g syndrome, gbbb, gbbb1, gbbb1, formerly, hypertelorism with esophageal abnormality and hypospadias, hypertelorism-hypospadias syndrome, mid1, ogs1, formerly, opitz bbbg syndrome, type 1, opitz bbbg syndrome, type i, opitz bbbg syndrome, type i, formerly, opitz g/bbb syndrome, x-linked, opitz gbbb syndrome, opitz gbbb syndrome, type 1, opitz gbbb syndrome, type i, opitz gbbb syndrome, type i, formerly, opitz gbbb syndrome, type i, x-linked recessive, opitz gbbb syndrome, x-linked, opitz syndrome, opitz syndrome, x-linked, opitz's (j.m.) syndrome, opitz-frias syndrome, opitz-g syndrome, type 1, opitz-g syndrome, type i, opitz-g syndrome, type i, formerly, os, osx, telecanthus-hypospadias syndrome, x-linked opitz bbb/g syndrome, x-linked opitz g/bbb syndrome, x-linked opitz syndrome, x-linked opitz syndrome (xlos), xlos, 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="MID1-related Opitz G/BBB syndrome (MID1-OS) is characterized by facial anomalies (hypertelorism, prominent forehead, widow's peak, broad nasal bridge, anteverted nares), genitourinary abnormalities (hypospadias, cryptorchidism, and hypoplastic/bifid scrotum), and laryngotracheoesophageal defects. Developmental delay and intellectual disability are observed in about 30% of affected males. Cleft lip and/or palate are present in approximately half of affected males. Other malformations (present in &lt;50% of affected males) include congenital heart defects, imperforate or ectopic anus, and midline brain defects (Dandy-Walker malformation and agenesis or hypoplasia of the corpus callosum and/or cerebellar vermis). Wide clinical variability occurs even among members of the same family. Female heterozygotes usually manifest hypertelorism only." /><meta name="robots" content="index,nofollow,noarchive" />
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<title>X-linked Opitz G/BBB syndrome (Concept Id: C2936904)
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<!--
UID=424842
ConceptID=C2936904
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<!--imgCountBooks = 0--><h1 class="medgenTitle"><div class="MedGenTitleText">X-linked Opitz G/BBB syndrome<span class="h1sub">(GBBB)</span></div></h1><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>424842</dd><dt><span class="dotprefix"> •</span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information."><span class="highlight" style="background-color:">C2936904</span></a></dd><dt><span class="dotprefix"> •</span></dt><dd>Disease or Syndrome</dd></dl></div></div><table class="medgenTable"><tbody><tr><td>Synonyms:</td>
<td>GBBB; OPITZ BBBG SYNDROME, TYPE I; OPITZ SYNDROME, X-LINKED; Opitz-Frias syndrome; OPITZ-G SYNDROME, TYPE I</td></tr>
<tr><td><span class="bold">SNOMED CT: </span></td>
<td>Opitz-Frias syndrome (81771002); Opitz syndrome (81771002); Hypertelorism-hypospadias syndrome (81771002); G syndrome (81771002); Opitz's (J.M.) syndrome (81771002)</td></tr>
<tr><td colspan="2" class="small"> </td></tr><tr><td><a class="help jig-ncbi-popper" data-jig="ncbipopper" href="#target-gene-loc">Gene (location):<img class="pulldown" src="//static.pubmed.gov/portal/portal3rc.fcgi/4223267/img/4204968" /></a><div class="display-none" id="target-gene-loc">
Gene(s) directly associated with<br />
this condition or phenotype.</div></td>
<td><a target="_blank" title="MID1 - ID: 4281 - NCBI Gene" href="/gene/4281" class="medgenPMinfo">MID1</a> (Xp22.2)</td></tr>
<tr><td colspan="2" class="small"> </td></tr><tr><td>Monarch Initiative:</td>
<td><a href="https://monarchinitiative.org/disease/MONDO:0010222" target="_blank">MONDO:0010222</a></td></tr>
<tr><td>OMIM<span class="superscript">®</span>:</td>
<td><a href="https://omim.org/entry/300000" target="_blank">300000</a></td></tr>
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<div class="portlet mgSection" id="ID_101">
<div class="portlet_head mgSectionHead ui-widget-header"><h1 class="nl" id="Disease_characteristics">Disease characteristics</h1><a sid="101" href="#" class="portlet_shutter" title="Show/hide content"></a></div>
<div class="portlet_content ln"><div class="excerpt">Excerpted from the <i>GeneReview: </i><a href="/books/NBK1327" target="_blank">MID1-Related Opitz G/BBB Syndrome</a></div><div>MID1-related Opitz G/BBB syndrome (MID1-OS) is characterized by facial anomalies (hypertelorism, prominent forehead, widow's peak, broad nasal bridge, anteverted nares), genitourinary abnormalities (hypospadias, cryptorchidism, and hypoplastic/bifid scrotum), and laryngotracheoesophageal defects. Developmental delay and intellectual disability are observed in about 30% of affected males. Cleft lip and/or palate are present in approximately half of affected males. Other malformations (present in &lt;50% of affected males) include congenital heart defects, imperforate or ectopic anus, and midline brain defects (Dandy-Walker malformation and agenesis or hypoplasia of the corpus callosum and/or cerebellar vermis). Wide clinical variability occurs even among members of the same family. Female heterozygotes usually manifest hypertelorism only. [from <a title="GeneReviews" href="https://www.ncbi.nlm.nih.gov/books/NBK1116" class="defSource" target="_blank">GeneReviews</a>]</div><div class="spaceAbove"><strong>Full text of <i>GeneReview</i> (by section):</strong><br /><a class="medgenPMinfo" href="/books/NBK1327#opitz.Summary" target="NBK1327">Summary</a>  |  <a class="medgenPMinfo" href="/books/NBK1327#opitz.Diagnosis" target="NBK1327">Diagnosis</a>  |  <a class="medgenPMinfo" href="/books/NBK1327#opitz.Clinical_Characteristics" target="NBK1327">Clinical Characteristics</a>  |  <a class="medgenPMinfo" href="/books/NBK1327#opitz.Genetically_Related_Allelic_Disord" target="NBK1327">Genetically Related (Allelic) Disorders</a>  |  <a class="medgenPMinfo" href="/books/NBK1327#opitz.Differential_Diagnosis" target="NBK1327">Differential Diagnosis</a>  |  <a class="medgenPMinfo" href="/books/NBK1327#opitz.Management" target="NBK1327">Management</a>  |  <a class="medgenPMinfo" href="/books/NBK1327#opitz.Genetic_Counseling" target="NBK1327">Genetic Counseling</a>  |  <a class="medgenPMinfo" href="/books/NBK1327#opitz.Resources" target="NBK1327">Resources</a>  |  <a class="medgenPMinfo" href="/books/NBK1327#opitz.Molecular_Genetics" target="NBK1327">Molecular Genetics</a>  |  <a class="medgenPMinfo" href="/books/NBK1327#opitz.Chapter_Notes" target="NBK1327">Chapter Notes</a>  |  <a class="medgenPMinfo" href="/books/NBK1327#opitz.References" target="NBK1327">References</a></div><div class="spaceAbove"><strong>Authors:</strong><br />
Germana Meroni   <a href="/books/NBK1327" target="NBK1327" title="NCBI Bookshelf: MID1-Related Opitz G/BBB Syndrome">view full author information</a></div></div>
</div>
<div class="portlet mgSection" id="ID_117">
<div class="portlet_head mgSectionHead ui-widget-header"><h1 class="nl" id="Additional_description">Additional description</h1><a sid="117" href="#" class="portlet_shutter" title="Show/hide content"></a></div>
<div class="portlet_content ln"><div class="mgSection"><strong>From MedlinePlus Genetics</strong><br />Opitz G/BBB syndrome is a genetic condition that causes several abnormalities along the midline of the body. "G/BBB" represents the first letters of the last names of the families first diagnosed with this disorder and "Opitz" is the last name of the doctor who first described the signs and symptoms. There are two forms of Opitz G/BBB syndrome, X-linked Opitz G/BBB syndrome and autosomal dominant Opitz G/BBB syndrome. The two forms are distinguished by their genetic causes and patterns of inheritance. The signs and symptoms of the two forms are generally the same.<br /><br />Nearly everyone with Opitz G/BBB syndrome has wide-spaced eyes (ocular hypertelorism). Affected individuals commonly have defects of the voice box (larynx), windpipe (trachea), or esophagus. These throat abnormalities can cause difficulty swallowing or breathing, in some cases resulting in recurrent pneumonia or life-threatening breathing problems. A common defect is a gap between the trachea and esophagus (laryngeal cleft) that allows food or fluids to enter the airway. The cleft can vary in size, and infants may struggle to breathe when feeding. Most males with Opitz G/BBB syndrome have genital abnormalities such as the urethra opening on the underside of the penis (hypospadias), undescended testes (cryptorchidism), an underdeveloped scrotum, or a scrotum divided into two lobes (bifid scrotum). These genital abnormalities can lead to problems in the urinary tract.<br /><br />Mild intellectual disability and developmental delay occur in about 50 percent of people with Opitz G/BBB syndrome. Affected individuals have delayed motor skills, such as walking, speech delay, and learning difficulties. Some people with Opitz G/BBB syndrome have features of autistic spectrum disorders, which are characterized by impaired communication and socialization skills. About half of affected individuals also have an opening in the lip (cleft lip) with or without an opening in the roof of the mouth (cleft palate). Some have cleft palate without cleft lip. Less common features of Opitz G/BBB syndrome, affecting less than half of people with this disorder, include minor heart defects, an obstruction of the anal opening (imperforate anus), and brain defects such as a small or absent connection between the left and right halves of the brain (corpus callosum). Distinct facial features that may be seen in this disorder include a prominent forehead, widow's peak hairline, flat nasal bridge, thin upper lip, and low-set ears. These features vary among affected individuals, even within the same family.  <a target="_blank" href="https://medlineplus.gov/genetics/condition/opitz-g-bbb-syndrome">https://medlineplus.gov/genetics/condition/opitz-g-bbb-syndrome</a></div></div>
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<div class="portlet mgSection" id="ID_102">
<div class="portlet_head mgSectionHead ui-widget-header"><h1 class="nl" id="Clinical_features">Clinical features</h1><a sid="102" href="#" class="portlet_shutter" title="Show/hide content"></a></div>
<div class="portlet_content ln clinfeat"><strong>From HPO</strong><br />
<div class="divPopper rprt" id="clin_8192"><div><strong>Cryptorchidism</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>8192</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.">C0010417</a></dd><dt><span class="dotprefix"> •</span></dt><dd>Congenital Abnormality</dd></dl></div></div></div>
<div class="spaceAbove">Cryptorchidism, or failure of testicular descent, is a common human congenital abnormality with a multifactorial etiology that likely reflects the involvement of endocrine, environmental, and hereditary factors. Cryptorchidism can result in infertility and increases risk for testicular tumors. Testicular descent from abdomen to scrotum occurs in 2 distinct phases: the transabdominal phase and the inguinoscrotal phase (summary by Gorlov et al., 2002).</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/8192">Feature record</a> | <a href="/medgen?term=%22Cryptorchidism%22%5BClinical%20Features%5D%20OR%208192%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_21852"><div><strong>Vesicoureteral reflux</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>21852</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.">C0042580</a></dd><dt><span class="dotprefix"> •</span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Vesicoureteral reflux (VUR) is characterized by the reflux of urine from the bladder into the ureters and sometimes into the kidneys. It is a risk factor for urinary tract infections. Primary VUR results from a developmental defect of the ureterovesical junction (UVJ). In combination with intrarenal reflux, the resulting inflammatory reaction may result in renal injury or scarring, also called reflux nephropathy (RN). Extensive renal scarring impairs renal function and may predispose patients to hypertension, proteinuria, and renal insufficiency (summary by Lu et al., 2007).&#13; Genetic Heterogeneity of Vesicoureteral Reflux&#13; A locus designated VUR1 maps to chromosome 1p13. VUR2 (610878) is caused by mutation in the ROBO2 gene (602431) on chromosome 3p12; VUR3 (613674) is caused by mutation in the SOX17 gene (610928) on chromosome 8q11; VUR4 (614317) maps to chromosome 5; VUR5 (614318) maps to chromosome 13; VUR6 (614319) maps to chromosome 18; VUR7 (615390) maps to chromosome 12; and VUR8 (615963) is caused by mutation in the TNXB gene (600985) on chromosome 6p21. A possible X-linked form has been reported (VURX; 314550).</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/21852">Feature record</a> | <a href="/medgen?term=%22Vesicoureteral%20reflux%22%5BClinical%20Features%5D%20OR%2021852%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_451008"><div><strong>Congenital posterior urethral valve</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>451008</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.">C0238506</a></dd><dt><span class="dotprefix"> •</span></dt><dd>Congenital Abnormality</dd></dl></div></div></div>
<div class="spaceAbove">A developmental defect resulting in an obstructing membrane in the posterior male urethra.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/451008">Feature record</a> | <a href="/medgen?term=%22Congenital%20posterior%20urethral%20valve%22%5BClinical%20Features%5D%20OR%20451008%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_163083"><div><strong>Hypospadias</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>163083</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.">C0848558</a></dd><dt><span class="dotprefix"> •</span></dt><dd>Congenital Abnormality</dd></dl></div></div></div>
<div class="spaceAbove">Abnormal position of urethral meatus on the ventral penile shaft (underside) characterized by displacement of the urethral meatus from the tip of the glans penis to the ventral surface of the penis, scrotum, or perineum.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/163083">Feature record</a> | <a href="/medgen?term=%22Hypospadias%22%5BClinical%20Features%5D%20OR%20163083%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_1633603"><div><strong>Micropenis</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>1633603</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.">C4551492</a></dd><dt><span class="dotprefix"> •</span></dt><dd>Congenital Abnormality</dd></dl></div></div></div>
<div class="spaceAbove">Abnormally small penis. At birth, the normal penis is about 3 cm (stretched length from pubic tubercle to tip of penis) with micropenis less than 2.0-2.5 cm.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/1633603">Feature record</a> | <a href="/medgen?term=%22Micropenis%22%5BClinical%20Features%5D%20OR%201633603%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_42366"><div><strong>Ventricular septal defect</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>42366</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.">C0018818</a></dd><dt><span class="dotprefix"> •</span></dt><dd>Congenital Abnormality</dd></dl></div></div></div>
<div class="spaceAbove">A hole between the two bottom chambers (ventricles) of the heart. The defect is centered around the most superior aspect of the ventricular septum.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/42366">Feature record</a> | <a href="/medgen?term=%22Ventricular%20septal%20defect%22%5BClinical%20Features%5D%20OR%2042366%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_99124"><div><strong>Growth delay</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>99124</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.">C0456070</a></dd><dt><span class="dotprefix"> •</span></dt><dd>Pathologic Function</dd></dl></div></div></div>
<div class="spaceAbove">A deficiency or slowing down of growth pre- and postnatally.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/99124">Feature record</a> | <a href="/medgen?term=%22Growth%20delay%22%5BClinical%20Features%5D%20OR%2099124%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_1997"><div><strong>Imperforate anus</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>1997</dd><dt><span class="dotprefix"> •</span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C0003466</a></dd><dt><span class="dotprefix"> •</span></dt><dd>Congenital Abnormality</dd></dl></div></div></div>
<div class="spaceAbove">Congenital absence of the anus, i.e., the opening at the bottom end of the intestinal tract.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/1997">Feature record</a> | <a href="/medgen?term=%22Imperforate%20anus%22%5BClinical%20Features%5D%20OR%201997%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_41440"><div><strong>Dysphagia</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>41440</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.">C0011168</a></dd><dt><span class="dotprefix"> •</span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Difficulty in swallowing.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/41440">Feature record</a> | <a href="/medgen?term=%22Dysphagia%22%5BClinical%20Features%5D%20OR%2041440%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_75708"><div><strong>Rectourethral fistula</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>75708</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.">C0268875</a></dd><dt><span class="dotprefix"> •</span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">An abnormal connection (fistula) between the rectum and the urethra.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/75708">Feature record</a> | <a href="/medgen?term=%22Rectourethral%20fistula%22%5BClinical%20Features%5D%20OR%2075708%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_1368658"><div><strong>Gastroesophageal reflux</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>1368658</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.">C4317146</a></dd><dt><span class="dotprefix"> •</span></dt><dd>Finding</dd></dl></div></div></div>
<div class="spaceAbove">A condition in which the stomach contents leak backwards from the stomach into the esophagus through the lower esophageal sphincter.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/1368658">Feature record</a> | <a href="/medgen?term=%22Gastroesophageal%20reflux%22%5BClinical%20Features%5D%20OR%201368658%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_65980"><div><strong>Low-set ears</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>65980</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.">C0239234</a></dd><dt><span class="dotprefix"> •</span></dt><dd>Congenital Abnormality</dd></dl></div></div></div>
<div class="spaceAbove">Upper insertion of the ear to the scalp below an imaginary horizontal line drawn between the inner canthi of the eye and extending posteriorly to the ear.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/65980">Feature record</a> | <a href="/medgen?term=%22Low-set%20ears%22%5BClinical%20Features%5D%20OR%2065980%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_96566"><div><strong>Posteriorly rotated ears</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>96566</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.">C0431478</a></dd><dt><span class="dotprefix"> •</span></dt><dd>Congenital Abnormality</dd></dl></div></div></div>
<div class="spaceAbove">A type of abnormal location of the ears in which the position of the ears is characterized by posterior rotation (the superior part of the ears is rotated towards the back of the head, and the inferior part of the ears towards the front).</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/96566">Feature record</a> | <a href="/medgen?term=%22Posteriorly%20rotated%20ears%22%5BClinical%20Features%5D%20OR%2096566%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_10044"><div><strong>Intellectual disability, mild</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>10044</dd><dt><span class="dotprefix"> •</span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C0026106</a></dd><dt><span class="dotprefix"> •</span></dt><dd>Mental or Behavioral Dysfunction</dd></dl></div></div></div>
<div class="spaceAbove">Mild intellectual disability is defined as an intelligence quotient (IQ) in the range of 50-69.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/10044">Feature record</a> | <a href="/medgen?term=%22Intellectual%20disability%2C%20mild%22%5BClinical%20Features%5D%20OR%2010044%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_104498"><div><strong>Corpus callosum, agenesis of</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>104498</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.">C0175754</a></dd><dt><span class="dotprefix"> •</span></dt><dd>Congenital Abnormality</dd></dl></div></div></div>
<div class="spaceAbove">The corpus callosum is the largest fiber tract in the central nervous system and the major interhemispheric fiber bundle in the brain. Formation of the corpus callosum begins as early as 6 weeks' gestation, with the first fibers crossing the midline at 11 to 12 weeks' gestation, and completion of the basic shape by age 18 to 20 weeks (Schell-Apacik et al., 2008). Agenesis of the corpus callosum (ACC) is one of the most frequent malformations in brain with a reported incidence ranging between 0.5 and 70 in 10,000 births. ACC is a clinically and genetically heterogeneous condition, which can be observed either as an isolated condition or as a manifestation in the context of a congenital syndrome (see MOLECULAR GENETICS and Dobyns, 1996). Also see mirror movements-1 and/or agenesis of the corpus callosum (MRMV1; 157600).&#13; Schell-Apacik et al. (2008) noted that there is confusion in the literature regarding radiologic terminology concerning partial absence of the corpus callosum, where various designations have been used, including hypogenesis, hypoplasia, partial agenesis, or dysgenesis.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/104498">Feature record</a> | <a href="/medgen?term=%22Corpus%20callosum%2C%20agenesis%20of%22%5BClinical%20Features%5D%20OR%20104498%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_107838"><div><strong>Global developmental delay</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>107838</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.">C0557874</a></dd><dt><span class="dotprefix"> •</span></dt><dd>Finding</dd></dl></div></div></div>
<div class="spaceAbove">A delay in the achievement of motor or mental milestones in the domains of development of a child, including motor skills, speech and language, cognitive skills, and social and emotional skills. This term should only be used to describe children younger than five years of age.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/107838">Feature record</a> | <a href="/medgen?term=%22Global%20developmental%20delay%22%5BClinical%20Features%5D%20OR%20107838%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_333548"><div><strong>Cerebellar vermis hypoplasia</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>333548</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.">C1840379</a></dd><dt><span class="dotprefix"> •</span></dt><dd>Finding</dd></dl></div></div></div>
<div class="spaceAbove">Underdevelopment of the vermis of cerebellum.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/333548">Feature record</a> | <a href="/medgen?term=%22Cerebellar%20vermis%20hypoplasia%22%5BClinical%20Features%5D%20OR%20333548%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_6817"><div><strong>Inguinal hernia</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>6817</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.">C0019294</a></dd><dt><span class="dotprefix"> •</span></dt><dd>Finding</dd></dl></div></div></div>
<div class="spaceAbove">Protrusion of the contents of the abdominal cavity through the inguinal canal.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/6817">Feature record</a> | <a href="/medgen?term=%22Inguinal%20hernia%22%5BClinical%20Features%5D%20OR%206817%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_9232"><div><strong>Umbilical hernia</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>9232</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.">C0019322</a></dd><dt><span class="dotprefix"> •</span></dt><dd>Anatomical Abnormality</dd></dl></div></div></div>
<div class="spaceAbove">Protrusion of abdominal contents through a defect in the abdominal wall musculature around the umbilicus. Skin and subcutaneous tissue overlie the defect.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/9232">Feature record</a> | <a href="/medgen?term=%22Umbilical%20hernia%22%5BClinical%20Features%5D%20OR%209232%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_67453"><div><strong>Frontal bossing</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>67453</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.">C0221354</a></dd><dt><span class="dotprefix"> •</span></dt><dd>Congenital Abnormality</dd></dl></div></div></div>
<div class="spaceAbove">Bilateral bulging of the lateral frontal bone prominences with relative sparing of the midline.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/67453">Feature record</a> | <a href="/medgen?term=%22Frontal%20bossing%22%5BClinical%20Features%5D%20OR%2067453%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_400926"><div><strong>Wide anterior fontanel</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>400926</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.">C1866134</a></dd><dt><span class="dotprefix"> •</span></dt><dd>Finding</dd></dl></div></div></div>
<div class="spaceAbove">Enlargement of the anterior fontanelle with respect to age-dependent norms.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/400926">Feature record</a> | <a href="/medgen?term=%22Wide%20anterior%20fontanel%22%5BClinical%20Features%5D%20OR%20400926%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_1644158"><div><strong>Microcephaly</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>1644158</dd><dt><span class="dotprefix"> •</span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C4551563</a></dd><dt><span class="dotprefix"> •</span></dt><dd>Finding</dd></dl></div></div></div>
<div class="spaceAbove">Head circumference below 2 standard deviations below the mean for age and gender.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/1644158">Feature record</a> | <a href="/medgen?term=%22Microcephaly%22%5BClinical%20Features%5D%20OR%201644158%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_327075"><div><strong>Laryngeal cleft</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>327075</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.">C1840311</a></dd><dt><span class="dotprefix"> •</span></dt><dd>Congenital Abnormality</dd></dl></div></div></div>
<div class="spaceAbove">Presence of a gap in the posterior laryngotracheal wall with a continuity between the larynx and the esophagus.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/327075">Feature record</a> | <a href="/medgen?term=%22Laryngeal%20cleft%22%5BClinical%20Features%5D%20OR%20327075%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_336332"><div><strong>Posterior pharyngeal cleft</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>336332</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.">C1848389</a></dd><dt><span class="dotprefix"> •</span></dt><dd>Finding</dd></dl></div></div></div>
<div class="spaceAbove nowrap">See: <a href="/medgen/336332">Feature record</a> | <a href="/medgen?term=%22Posterior%20pharyngeal%20cleft%22%5BClinical%20Features%5D%20OR%20336332%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_751786"><div><strong>Aspiration</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>751786</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.">C2712334</a></dd><dt><span class="dotprefix"> •</span></dt><dd>Finding</dd></dl></div></div></div>
<div class="spaceAbove">Inspiration of a foreign object into the airway.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/751786">Feature record</a> | <a href="/medgen?term=%22Aspiration%22%5BClinical%20Features%5D%20OR%20751786%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_871265"><div><strong>Abnormal nasopharynx morphology</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>871265</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.">C4025750</a></dd><dt><span class="dotprefix"> •</span></dt><dd>Anatomical Abnormality</dd></dl></div></div></div>
<div class="spaceAbove">A structural anomaly of the nasopharynx.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/871265">Feature record</a> | <a href="/medgen?term=%22Abnormal%20nasopharynx%20morphology%22%5BClinical%20Features%5D%20OR%20871265%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_5602"><div><strong>Hoarse voice</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>5602</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.">C0019825</a></dd><dt><span class="dotprefix"> •</span></dt><dd>Sign or Symptom</dd></dl></div></div></div>
<div class="spaceAbove">Hoarseness refers to a change in the pitch or quality of the voice, with the voice sounding weak, very breathy, scratchy, or husky.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/5602">Feature record</a> | <a href="/medgen?term=%22Hoarse%20voice%22%5BClinical%20Features%5D%20OR%205602%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_40327"><div><strong>Cleft upper lip</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>40327</dd><dt><span class="dotprefix"> •</span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C0008924</a></dd><dt><span class="dotprefix"> •</span></dt><dd>Congenital Abnormality</dd></dl></div></div></div>
<div class="spaceAbove">A gap or groove in the upper lip. This is a congenital defect resulting from nonfusion of tissues of the lip during embryonal development.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/40327">Feature record</a> | <a href="/medgen?term=%22Cleft%20upper%20lip%22%5BClinical%20Features%5D%20OR%2040327%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_66814"><div><strong>High palate</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>66814</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.">C0240635</a></dd><dt><span class="dotprefix"> •</span></dt><dd>Congenital Abnormality</dd></dl></div></div></div>
<div class="spaceAbove">Height of the palate more than 2 SD above the mean (objective) or palatal height at the level of the first permanent molar more than twice the height of the teeth (subjective).</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/66814">Feature record</a> | <a href="/medgen?term=%22High%20palate%22%5BClinical%20Features%5D%20OR%2066814%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_451047"><div><strong>Unilateral cleft lip</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>451047</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.">C0392006</a></dd><dt><span class="dotprefix"> •</span></dt><dd>Congenital Abnormality</dd></dl></div></div></div>
<div class="spaceAbove">A non-midline cleft of the upper lip on one side only.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/451047">Feature record</a> | <a href="/medgen?term=%22Unilateral%20cleft%20lip%22%5BClinical%20Features%5D%20OR%20451047%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_140836"><div><strong>Telecanthus</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>140836</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.">C0423113</a></dd><dt><span class="dotprefix"> •</span></dt><dd>Finding</dd></dl></div></div></div>
<div class="spaceAbove">Distance between the inner canthi more than two standard deviations above the mean (objective); or, apparently increased distance between the inner canthi.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/140836">Feature record</a> | <a href="/medgen?term=%22Telecanthus%22%5BClinical%20Features%5D%20OR%20140836%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_222980"><div><strong>Smooth philtrum</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>222980</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.">C1142533</a></dd><dt><span class="dotprefix"> •</span></dt><dd>Finding</dd></dl></div></div></div>
<div class="spaceAbove">Flat skin surface, with no ridge formation in the central region of the upper lip between the nasal base and upper vermilion border.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/222980">Feature record</a> | <a href="/medgen?term=%22Smooth%20philtrum%22%5BClinical%20Features%5D%20OR%20222980%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_373291"><div><strong>Prominent forehead</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>373291</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.">C1837260</a></dd><dt><span class="dotprefix"> •</span></dt><dd>Finding</dd></dl></div></div></div>
<div class="spaceAbove">Forward prominence of the entire forehead, due to protrusion of the frontal bone.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/373291">Feature record</a> | <a href="/medgen?term=%22Prominent%20forehead%22%5BClinical%20Features%5D%20OR%20373291%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_326648"><div><strong>Anteverted nares</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>326648</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.">C1840077</a></dd><dt><span class="dotprefix"> •</span></dt><dd>Finding</dd></dl></div></div></div>
<div class="spaceAbove">Anteriorly-facing nostrils viewed with the head in the Frankfurt horizontal and the eyes of the observer level with the eyes of the subject. This gives the appearance of an upturned nose (upturned nasal tip).</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/326648">Feature record</a> | <a href="/medgen?term=%22Anteverted%20nares%22%5BClinical%20Features%5D%20OR%20326648%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_326686"><div><strong>Solitary median maxillary central incisor syndrome</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>326686</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.">C1840235</a></dd><dt><span class="dotprefix"> •</span></dt><dd>Congenital Abnormality</dd></dl></div></div></div>
<div class="spaceAbove">Solitary median maxillary central incisor (SMMCI) may occur as an isolated anomaly or with various associated features, primarily short stature, choanal atresia, midnasal stenosis, and holoprosencephaly (Hall et al., 1997).</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/326686">Feature record</a> | <a href="/medgen?term=%22Solitary%20median%20maxillary%20central%20incisor%20syndrome%22%5BClinical%20Features%5D%20OR%20326686%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_341441"><div><strong>Wide nasal bridge</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>341441</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.">C1849367</a></dd><dt><span class="dotprefix"> •</span></dt><dd>Finding</dd></dl></div></div></div>
<div class="spaceAbove">Increased breadth of the nasal bridge (and with it, the nasal root).</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/341441">Feature record</a> | <a href="/medgen?term=%22Wide%20nasal%20bridge%22%5BClinical%20Features%5D%20OR%20341441%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_342891"><div><strong>Widow peak</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>342891</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.">C1853486</a></dd><dt><span class="dotprefix"> •</span></dt><dd>Finding</dd></dl></div></div></div>
<div class="spaceAbove">Frontal hairline with bilateral arcs to a low point in the midline of the forehead.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/342891">Feature record</a> | <a href="/medgen?term=%22Widow%20peak%22%5BClinical%20Features%5D%20OR%20342891%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_355352"><div><strong>Thin upper lip vermilion</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>355352</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.">C1865017</a></dd><dt><span class="dotprefix"> •</span></dt><dd>Finding</dd></dl></div></div></div>
<div class="spaceAbove">Height of the vermilion of the upper lip in the midline more than 2 SD below the mean. Alternatively, an apparently reduced height of the vermilion of the upper lip in the frontal view (subjective).</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/355352">Feature record</a> | <a href="/medgen?term=%22Thin%20upper%20lip%20vermilion%22%5BClinical%20Features%5D%20OR%20355352%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_756015"><div><strong>Cleft palate</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>756015</dd><dt><span class="dotprefix"> •</span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C2981150</a></dd><dt><span class="dotprefix"> •</span></dt><dd>Congenital Abnormality</dd></dl></div></div></div>
<div class="spaceAbove">Cleft palate is a developmental defect of the palate resulting from a failure of fusion of the palatine processes and manifesting as a separation of the roof of the mouth (soft and hard palate).</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/756015">Feature record</a> | <a href="/medgen?term=%22Cleft%20palate%22%5BClinical%20Features%5D%20OR%20756015%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_9373"><div><strong>Hypertelorism</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>9373</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.">C0020534</a></dd><dt><span class="dotprefix"> •</span></dt><dd>Finding</dd></dl></div></div></div>
<div class="spaceAbove">Although hypertelorism means an excessive distance between any paired organs (e.g., the nipples), the use of the word has come to be confined to ocular hypertelorism. Hypertelorism occurs as an isolated feature and is also a feature of many syndromes, e.g., Opitz G syndrome (see 300000), Greig cephalopolysyndactyly (175700), and Noonan syndrome (163950) (summary by Cohen et al., 1995).</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/9373">Feature record</a> | <a href="/medgen?term=%22Hypertelorism%22%5BClinical%20Features%5D%20OR%209373%5Buid%5D">Search on this feature</a></div></div><div class="TreeLite" data-jigconfig="closed: 1"><div class="concept-def"><a class="small" href="#" onclick="jQuery(&quot;.TreeLite&quot;,&quot;#ID_102&quot;).TreeLite().openAll(); return false;">Show all</a><a class="small" href="#" onclick="jQuery(&quot;.TreeLite&quot;,&quot;#ID_102&quot;).TreeLite().closeAll(); return false;">Hide all</a></div><ul><li><span class="TLline">Abnormality of head or neck</span><ul><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_326648" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Anteverted nares</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_756015" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Cleft palate</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_40327" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Cleft upper lip</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_66814" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">High palate</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_373291" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Prominent forehead</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_222980" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Smooth philtrum</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_326686" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Solitary median maxillary central incisor syndrome</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_140836" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Telecanthus</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_355352" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Thin upper lip vermilion</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_451047" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Unilateral cleft lip</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_341441" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Wide nasal bridge</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_342891" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Widow peak</a></span></li></ul></li><li><span class="TLline">Abnormality of the cardiovascular system</span><ul><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_42366" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Ventricular septal defect</a></span></li></ul></li><li><span class="TLline">Abnormality of the digestive system</span><ul><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_41440" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Dysphagia</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_1368658" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Gastroesophageal reflux</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_1997" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Imperforate anus</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_75708" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Rectourethral fistula</a></span></li></ul></li><li><span class="TLline">Abnormality of the eye</span><ul><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_9373" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Hypertelorism</a></span></li></ul></li><li><span class="TLline">Abnormality of the genitourinary system</span><ul><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_451008" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Congenital posterior urethral valve</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_8192" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Cryptorchidism</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_163083" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Hypospadias</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_1633603" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Micropenis</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_21852" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Vesicoureteral reflux</a></span></li></ul></li><li><span class="TLline">Abnormality of the musculoskeletal system</span><ul><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_67453" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Frontal bossing</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_6817" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Inguinal hernia</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_1644158" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Microcephaly</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_9232" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Umbilical hernia</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_400926" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Wide anterior fontanel</a></span></li></ul></li><li><span class="TLline">Abnormality of the nervous system</span><ul><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_333548" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Cerebellar vermis hypoplasia</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_104498" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Corpus callosum, agenesis of</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_107838" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Global developmental delay</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_10044" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Intellectual disability, mild</a></span></li></ul></li><li><span class="TLline">Abnormality of the respiratory system</span><ul><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_871265" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Abnormal nasopharynx morphology</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_751786" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Aspiration</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_327075" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Laryngeal cleft</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_336332" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Posterior pharyngeal cleft</a></span></li></ul></li><li><span class="TLline">Abnormality of the voice</span><ul><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_5602" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Hoarse voice</a></span></li></ul></li><li><span class="TLline">Ear malformation</span><ul><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_65980" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Low-set ears</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_96566" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Posteriorly rotated ears</a></span></li></ul></li><li><span class="TLline">Growth abnormality</span><ul><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_99124" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Growth delay</a></span></li></ul></li></ul></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/17043407">X-linked Opitz G/BBB syndrome: identification of a novel mutation and prenatal diagnosis in a Korean family.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Cho HJ,
Shin MY,
Ahn KM,
Lee SI,
Kim HJ,
Ki CS,
Kim JW</span><br />
<span class="medgenPMjournal">J Korean Med Sci</span>
2006 Oct;21(5):790-3.
doi: 10.3346/jkms.2006.21.5.790.
<span class="bold">PMID: </span><a href="/pubmed/17043407" target="_blank">17043407</a><a href="/pmc/articles/PMC2721984" target="_blank" class="PubMedFree">Free PMC Article</a></div>
<div><a target="_blank" href="https://pubmed.ncbi.nlm.nih.gov/?term=(%22x-linked%20opitz%20g%2Fbbb%20syndrome%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 (1)</a></div></div>
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<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/31630581">First trimester ultrasound features of X-linked Opitz syndrome and early molecular diagnosis: case report and review of the literature.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Sarno L,
Maruotti GM,
Izzo A,
Mazzaccara C,
Carbone L,
Esposito G,
Di Cresce M,
Saccone G,
Sirico A,
Genesio R,
Mollo N,
Martinelli P,
Conti A,
Zullo F,
Frisso G</span><br />
<span class="medgenPMjournal">J Matern Fetal Neonatal Med</span>
2021 Sep;34(18):3089-3093.
Epub 2019 Oct 21
doi: 10.1080/14767058.2019.1677594.
<span class="bold">PMID: </span><a href="/pubmed/31630581" target="_blank">31630581</a></div>
<div class="nl"><a target="_blank" href="/pubmed/18697196">Clinical and molecular studies of patients with characteristics of Opitz G/BBB syndrome shows a novel MID1 mutation.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Hsieh EW,
Vargervik K,
Slavotinek AM</span><br />
<span class="medgenPMjournal">Am J Med Genet A</span>
2008 Sep 15;146A(18):2337-45.
doi: 10.1002/ajmg.a.32368.
<span class="bold">PMID: </span><a href="/pubmed/18697196" target="_blank">18697196</a></div>
<div><a target="_blank" href="https://pubmed.ncbi.nlm.nih.gov/?term=%22X-linked%20Opitz%20G%2FBBB%20syndrome%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 (2)</a></div><h3 class="subhead">Diagnosis</h3>
<div class="nl"><a target="_blank" href="/pubmed/31630581">First trimester ultrasound features of X-linked Opitz syndrome and early molecular diagnosis: case report and review of the literature.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Sarno L,
Maruotti GM,
Izzo A,
Mazzaccara C,
Carbone L,
Esposito G,
Di Cresce M,
Saccone G,
Sirico A,
Genesio R,
Mollo N,
Martinelli P,
Conti A,
Zullo F,
Frisso G</span><br />
<span class="medgenPMjournal">J Matern Fetal Neonatal Med</span>
2021 Sep;34(18):3089-3093.
Epub 2019 Oct 21
doi: 10.1080/14767058.2019.1677594.
<span class="bold">PMID: </span><a href="/pubmed/31630581" target="_blank">31630581</a></div>
<div class="nl"><a target="_blank" href="/pubmed/24863803">Prenatal diagnosis of maternally inherited X-linked Opitz G/BBB syndrome by chromosomal microarray in a fetus with complex congenital heart disease.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Cheng YK,
Huang J,
Law KM,
Chan YM,
Leung TY,
Choy KW</span><br />
<span class="medgenPMjournal">Clin Chim Acta</span>
2014 Sep 25;436:140-2.
Epub 2014 May 23
doi: 10.1016/j.cca.2014.05.006.
<span class="bold">PMID: </span><a href="/pubmed/24863803" target="_blank">24863803</a></div>
<div class="nl"><a target="_blank" href="/pubmed/24374473">A novel mutation in MID1 in a patient with X-linked Opitz G/BBB syndrome.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Ji X,
Xing Y,
Xu Y,
Liu Y,
Chen Y,
Tao J,
Xiao B</span><br />
<span class="medgenPMjournal">Gene</span>
2014 Mar 1;537(1):140-2.
Epub 2013 Dec 26
doi: 10.1016/j.gene.2013.12.018.
<span class="bold">PMID: </span><a href="/pubmed/24374473" target="_blank">24374473</a></div>
<div class="nl"><a target="_blank" href="/pubmed/23354372">Exon 2 duplication of the MID1 gene in a patient with a mild phenotype of Opitz G/BBB syndrome.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Hüning I,
Kutsche K,
Rajaei S,
Erlandsson A,
Lovmar L,
Rundberg J,
Stefanova M</span><br />
<span class="medgenPMjournal">Eur J Med Genet</span>
2013 Apr;56(4):188-91.
Epub 2013 Jan 23
doi: 10.1016/j.ejmg.2013.01.004.
<span class="bold">PMID: </span><a href="/pubmed/23354372" target="_blank">23354372</a></div>
<div class="nl"><a target="_blank" href="/pubmed/17043407">X-linked Opitz G/BBB syndrome: identification of a novel mutation and prenatal diagnosis in a Korean family.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Cho HJ,
Shin MY,
Ahn KM,
Lee SI,
Kim HJ,
Ki CS,
Kim JW</span><br />
<span class="medgenPMjournal">J Korean Med Sci</span>
2006 Oct;21(5):790-3.
doi: 10.3346/jkms.2006.21.5.790.
<span class="bold">PMID: </span><a href="/pubmed/17043407" target="_blank">17043407</a><a href="/pmc/articles/PMC2721984" target="_blank" class="PubMedFree">Free PMC Article</a></div>
<div><a target="_blank" href="https://pubmed.ncbi.nlm.nih.gov/?term=%22X-linked%20Opitz%20G%2FBBB%20syndrome%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 (6)</a></div><h3 class="subhead">Prognosis</h3>
<div class="nl"><a target="_blank" href="/pubmed/24863803">Prenatal diagnosis of maternally inherited X-linked Opitz G/BBB syndrome by chromosomal microarray in a fetus with complex congenital heart disease.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Cheng YK,
Huang J,
Law KM,
Chan YM,
Leung TY,
Choy KW</span><br />
<span class="medgenPMjournal">Clin Chim Acta</span>
2014 Sep 25;436:140-2.
Epub 2014 May 23
doi: 10.1016/j.cca.2014.05.006.
<span class="bold">PMID: </span><a href="/pubmed/24863803" target="_blank">24863803</a></div>
<div><a target="_blank" href="https://pubmed.ncbi.nlm.nih.gov/?term=%22X-linked%20Opitz%20G%2FBBB%20syndrome%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 (1)</a></div><h3 class="subhead">Clinical prediction guides</h3>
<div class="nl"><a target="_blank" href="/pubmed/24863803">Prenatal diagnosis of maternally inherited X-linked Opitz G/BBB syndrome by chromosomal microarray in a fetus with complex congenital heart disease.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Cheng YK,
Huang J,
Law KM,
Chan YM,
Leung TY,
Choy KW</span><br />
<span class="medgenPMjournal">Clin Chim Acta</span>
2014 Sep 25;436:140-2.
Epub 2014 May 23
doi: 10.1016/j.cca.2014.05.006.
<span class="bold">PMID: </span><a href="/pubmed/24863803" target="_blank">24863803</a></div>
<div class="nl"><a target="_blank" href="/pubmed/18360914">MID1 mutations in patients with X-linked Opitz G/BBB syndrome.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Fontanella B,
Russolillo G,
Meroni G</span><br />
<span class="medgenPMjournal">Hum Mutat</span>
2008 May;29(5):584-94.
doi: 10.1002/humu.20706.
<span class="bold">PMID: </span><a href="/pubmed/18360914" target="_blank">18360914</a></div>
<div><a target="_blank" href="https://pubmed.ncbi.nlm.nih.gov/?term=%22X-linked%20Opitz%20G%2FBBB%20syndrome%22%20AND%20Clinical%20prediction%20guides%2Fbroad%5Bfilter%5D%20%20AND%20%22english%20and%20humans%22%5Bfilter%5D%20NOT%20comment%5BPTYP%5D%20NOT%20letter%5BPTYP%5D" title="PubMed search">See all (2)</a></div></div>
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<h2 class="offscreen_noflow">Supplemental Content</h2>
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<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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<div class="portlet_content ln"><ul><li><a href="/gtr/tests?term=C2936904%5bDISCUI%5d&amp;filter=method%3A2%5F8" target="_blank">Deletion/duplication analysis (35)</a></li>
<li><a href="/gtr/tests?term=C2936904%5bDISCUI%5d&amp;filter=method%3A2%5F29" target="_blank">Detection of homozygosity (2)</a></li>
<li><a href="/gtr/tests?term=C2936904%5bDISCUI%5d&amp;filter=method%3A2%5F12" target="_blank">Microsatellite instability testing (MSI) (1)</a></li>
<li><a href="/gtr/tests?term=C2936904%5bDISCUI%5d&amp;filter=method%3A2%5F18" target="_blank">Mutation scanning of select exons (1)</a></li>
<li><a href="/gtr/tests?term=C2936904%5bDISCUI%5d&amp;filter=method%3A2%5F9" target="_blank">Sequence analysis of select exons (1)</a></li>
<li><a href="/gtr/tests?term=C2936904%5bDISCUI%5d&amp;filter=method%3A2%5F7" target="_blank">Sequence analysis of the entire coding region (39)</a></li>
<li><a href="/gtr/tests?term=C2936904%5bDISCUI%5d&amp;filter=method%3A2%5F19" target="_blank">Targeted variant analysis (13)</a></li>
<li class="portletSeeAll portletSeeAllPad"><total><a href="/gtr/tests?term=C2936904%5bDISCUI%5d" target="_blank">See all (47)</a></total></li>
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<div class="portlet_content ln"><ul><li><a href="https://www.omim.org/search?index=entry&amp;start=1&amp;limit=10&amp;sort=score%20desc&amp;field=number&amp;search=300000" target="_blank">OMIM</a></li><li><a href="https://clinicaltrials.gov/search?cond=X-linked%20Opitz%20G/BBB%20syndrome" target="_blank">ClinicalTrials.gov</a></li></ul></div>
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<div class="portlet_head mgSectionHead ui-widget-header"><h1 class="nl" id="Practice_guidelines">Practice guidelines</h1><a sid="121" href="#" class="portlet_shutter" title="Show/hide content"></a></div>
<div class="portlet_content ln"><ul class="a_poppers"><li><a target="_blank" href="https://pubmed.ncbi.nlm.nih.gov/?term=(%22x-linked%20opitz%20g%2Fbbb%20syndrome%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">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></ul></div>
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<div class="portlet_head mgSectionHead ui-widget-header"><h1 class="nl" id="Molecular_resources">Molecular resources</h1><a sid="115" href="#" class="portlet_shutter" title="Show/hide content"></a></div>
<div class="portlet_content ln"><ul><li><a href="http://www.omim.org/search?index=entry&amp;start=1&amp;limit=10&amp;sort=score%20desc&amp;field=number&amp;search=300552" target="_blank">OMIM</a></li><li><a href="/clinvar/?term=4281[geneid]" target="_blank">View MID1 variations in ClinVar</a></li><li><a href="/nuccore/194018745" target="_blank">RefSeqGene</a></li><li><a href="https://catalog.coriell.org/Search?q=300000" target="_blank">Coriell Institute for Medical Research</a></li></ul></div>
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<div class="portlet_content ln"><ul><li><a href="http://www.diseaseinfosearch.org/Hypertelorism+with+esophageal+abnormality+and+hypospadias/3605" target="_blank">Genetic Alliance</a></li><li><a href="https://www.malacards.org/card/opitz_gbbb_syndrome_2" target="_blank">MalaCards</a></li><li><a href="https://vsearch.nlm.nih.gov/vivisimo/cgi-bin/query-meta?v:project=medlineplus&amp;query=X-linked%20Opitz%20G/BBB%20syndrome" target="_blank">MedlinePlus</a></li><li><a href="https://medlineplus.gov/genetics/condition/opitz-g-bbb-syndrome" target="_blank">MedlinePlusGenetics (GHR)</a></li></ul></div>
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