Polydactyly of the Foot eMedicine Orthopedics

Description: eMedicine Cara Novick 2005
Synonyms and related keywords: duplicate toe, extra toe, duplicate digit, extra digit, forefoot anomaly, syndactyly, Ellis-van Creveld syndrome, trisomy 13, tibial hemimelia, trisomy 21
Polydactyly most commonly refers to the presence of 6 toes on one foot, but more toes are possible. Polydactyly may be associated with syndactyly. It most frequently occurs as an isolated trait with autosomal dominant inheritance and variable penetrance. Other patterns of inheritance, sporadic occurrence, and association with syndromes are also possible.