Polydactyly is the most common congenital digital anomaly of the hand. The three types of this condition are: (1) type I, in which the extra finger is a soft small tissue segment (post-axial nubbin); ...

Polydactyly, the presence of extra digits, is one of the most common congenital malformations of the limb. Recent genetic studies have significantly advanced our understanding of limb development by ...