Antley-bixler syndrome with genital anomalies and disordered steroidogenesis - CISMeF
Antley-bixler syndrome with genital anomalies and disordered steroidogenesisOMIM Phenotype
Preferred Label : Antley-bixler syndrome with genital anomalies and disordered steroidogenesis;
Symbol : ABS1;
CISMeF acronym : ABS1;
Type : Phenotype, molecular basis known;
Description : The Antley-Bixler syndrome (ABS) is an exceptionally rare craniosynostosis syndrome
characterized by radiohumeral synostosis present from the perinatal period. There
is a wide spectrum of anomalies seen in ABS; other features include midface hypoplasia,
choanal stenosis or atresia, multiple joint contractures, visceral anomalies (particularly
of the genitourinary system), and impaired steroidogenesis (present only in patients
with POR mutations). Mortality has been reported to be as high as 80% in the neonatal
period, primarily due to airway compromise, and prognosis improves with increasing
age (summary by McGlaughlin et al., 2010).;
Inheritance : Autosomal recessive;
Molecular basis : Caused by mutation in the cytochrome P450 oxidoreductase gene (POR, 124015.0001);