Polydactyly, Postaxial [Supplementary Concept]

Polydactyly characterized by a well-formed extra digit that articulates with the fifth or a sixth metacarpal (Type A); or by a poorly developed extra digit (Type B). Both types occur at significantly higher frequency in African and African-American populations and are caused by mutations in the GLI3 gene. OMIM: 174200

Date introduced: November 5, 2012

MeSH Unique ID: C562429

Heading Mapped to:

• Fingers/abnormalities
• Toes/abnormalities
• Polydactyly

Entry Terms:

• Polydactyly, Postaxial, Type A1
• Postaxial Polydactyly, Type B
• Postaxial Polydactyly, Type A