" /> Antley-bixler syndrome without genital anomalies or disordered steroidogenesis - CISMeF





Preferred Label : Antley-bixler syndrome without genital anomalies or disordered steroidogenesis;

Symbol : ABS2;

CISMeF acronym : ABS2;

Type : Phenotype, molecular basis known;

Alternative titles and symbols : Osteodysgenesis, multisynostotic, with fractures; Trapezoidocephaly-synostosis syndrome; Multisynostotic osteodysgenesis with long bone fractures;

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, including midface hypoplasia, choanal stenosis or atresia, and multiple joint contractures. 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 dominant;

Molecular basis : Caused by mutation in the fibroblast growth factor receptor 2 gene (FGFR2, 176943.0002);

Prefixed ID : #207410;

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03/05/2025


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