Syndactyly of several fingers or toes. There are several forms: a simple one [MIM*174700] and one with abnormal skull shape, Grieg cephalopolysyndactyly syndrome [MIM*175700], both inherited as an autosomal dominant trait; a recessive form is associated with cardiac defects [MIM*263630].
polysyndactyly/poly·syn·dac·ty·ly/ (-sin-dak´tĭ-le) an association of polydactyly and syndactyly of varying degrees of both the hand and foot.
Etymology: Gk, polys, many, syn, together, daktylos, finger or toe
multiple webbing or fusion between fingers or toes. Also called synpolydactyly.
Syndactyly of several fingers or toes.
hereditary association of polydactyly and syndactyly.