" /> Pfeiffer syndrome - CISMeF





Preferred Label : Pfeiffer syndrome;

CISMeF acronym : ACS5;

Type : Phenotype, molecular basis known;

Alternative titles and symbols : Acrocephalosyndactyly, type V; Acs V; Noack syndrome; ACS5;

Included titles and symbols : Craniofacial-skeletal-dermatologic dysplasia;

Description : Pfeiffer syndrome is an autosomal dominant craniosynostosis syndrome with characteristic anomalies of the hands and feet. Three clinical subtypes, which have important diagnostic and prognostic implications, have been identified (Cohen, 1993). Type 1, the classic syndrome, is compatible with life and consists of craniosynostosis, midface deficiency, broad thumbs, broad great toes, brachydactyly, and variable syndactyly. Type 2 consists of cloverleaf skull with Pfeiffer hands and feet, together with ankylosis of the elbows. Type 3 is similar to type 2 but without cloverleaf skull. Ocular proptosis is severe, and the anterior cranial base is markedly short. Various visceral malformations have been found in association with type 3. Early demise is characteristic of types 2 and 3. Cohen and Barone (1994) further tabulated the findings in the 3 types of Pfeiffer syndrome.;

Inheritance : Autosomal dominant;

Molecular basis : Caused by mutation in the fibroblast growth factor receptor-1 gene (FGFR1, 136350.0001); Caused by mutation in the fibroblast growth factor receptor-2 gene (FGFR2, 176943.0012);

Prefixed ID : #101600;

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03/05/2025


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