Preferred Label : Opitz gbbb syndrome;
Symbol : GBBB;
CISMeF acronym : BBBG1; GBBB1; OGS1; OS; OSX;
Type : Phenotype, molecular basis known;
Alternative titles and symbols : Opitz syndrome; Opitz gbbb syndrome, X-linked; Opitz syndrome, X-linked; OSX; Opitz bbbg syndrome, type I; Hypertelorism with esophageal abnormality and hypospadias; OGS1; Opitz-g syndrome, type I; OS; Hypertelorism-hypospadias syndrome; Telecanthus-hypospadias syndrome; BBBG1; GBBB1; Opitz gbbb syndrome, type I;
Description : The Opitz GBBB syndrome is a congenital midline malformation syndrome characterized
by hypertelorism, hypospadias, cleft lip/palate, laryngotracheoesophageal abnormalities,
imperforate anus, developmental delay, and cardiac defects (So et al., 2005). This
disorder was first reported as 2 separate entities, BBB syndrome and G syndrome; subsequent
reports of families in which the BBB and G syndromes segregated within a single kindred
suggested that they represent a single entity. Opitz GBBB syndrome is genetically
heterogeneous, with both X-linked and autosomal dominant (145410) forms.;
Inheritance : X-linked recessive;
Molecular basis : Caused by mutations in the midline 1 gene (MID1, 300000.0001);
Prefixed ID : #300000;
Origin ID : 300000;
UMLS CUI : C2936904;
Automatic exact mappings (from CISMeF team)
- Bones [ICD-11 Extension code]
Broader ORDO disease(s)
Currated CISMeF NLP mapping
DO Cross reference
Genes related to phenotype
HPO term(s)
ORDO concept(s)
Semantic type(s)
UMLS correspondences (same concept)
Validated automatic mappings to NTBT