" /> Ehlers-danlos syndrome, hypermobility type - CISMeF





Preferred Label : Ehlers-danlos syndrome, hypermobility type;

Symbol : EDSHMB;

CISMeF acronym : EDSHMB; EDS3;

Type : Phenotype or locus, molecular basis unknown;

Alternative titles and symbols : Benign hypermobility syndrome; EDS3; Eds III; Ehlers-danlos syndrome, type III;

Description : The Ehlers-Danlos syndrome shows phenotypic and genetic heterogeneity; see 130000. According to the original Beighton classification (Beighton, 1970), EDS III is the benign hypermobility syndrome. Marked joint hyperextensibility without skeletal deformity dominates the clinical picture. Skin manifestations are relatively inconspicuous. Differentiation from familial joint laxity (147900) is often uncertain. Beighton et al. (1998) reported on a revised nosology of the Ehlers-Danlos syndromes, designated the Villefranche classification. Major and minor diagnostic criteria were defined for each type and complemented whenever possible with laboratory findings. Six main descriptive types were substituted for earlier types numbered with Roman numerals: classic type (EDS I and II), hypermobility type (EDS III), vascular type (EDS IV), kyphoscoliosis type (EDS VI), arthrochalasia type (EDS VIIA and VIIB), and dermatosparaxis type (EDS VIIC). Six other forms were listed, including a category of 'unspecified forms.';

Inheritance : Autosomal dominant;

Molecular basis : Caused by mutation in the tenascin XB gene (TNXB, 600985.0001);

Prefixed ID : %130020;

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03/05/2025


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