Greig Syndrome

**Semantic type:** Disease or Syndrome

**Definition:** An autosomal dominant genetic disorder caused by mutations in the GLI3 gene. It is characterized by physical abnormalities of the fingers and/or toes (extra fingers and/ or toes, fusion of the fingers and/or toes), large size head with prominent forehead and hypertelorism.

**Synonyms:** - GCPS - Greig Cephalopolysyndactyly Syndrome - Greig Cephalosyndactyly Syndrome - Greig's Syndrome