" /> Arthrogryposis, distal, type 2a - CISMeF





Preferred Label : Arthrogryposis, distal, type 2a;

Symbol : DA2A;

CISMeF acronym : DA2A; FSS;

Type : Phenotype, molecular basis known;

Alternative titles and symbols : Whistling face-windmill vane hand syndrome; Craniocarpotarsal dysplasia; FSS; Freeman-sheldon syndrome; Craniocarpotarsal dystrophy;

Description : Freeman-Sheldon syndrome (FSS), or DA2A, is phenotypically similar to DA1. In addition to contractures of the hands and feet, FSS is characterized by oropharyngeal abnormalities, scoliosis, and a distinctive face that includes a very small oral orifice (often only a few millimeters in diameter at birth), puckered lips, and an H-shaped dimple of the chin; hence, FSS has been called 'whistling face syndrome.' The limb phenotypes of DA1 and FSS may be so similar that they can only be distinguished by the differences in facial morphology (summary by Bamshad et al., 2009).;

Inheritance : Autosomal dominant;

Molecular basis : Caused by mutation in the embryonic skeletal muscle myosin heavy chain 3 gene (MYH3, 160720.0001);

Prefixed ID : #193700;

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02/05/2025


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