Osteochondritis dissecans and brachymesophalangia: a hereditary syndrome.

A kindred with an unusual congenital hand and foot anomaly is presented. It is an autosomal dominant hereditary disorder characterized by brachymesophalangia, slight clinodactyly, deformed metacarpal heads, osteochondritis dissecans in metacarpophalangeal joints, absence or hypoplasia of the ulnar styloid processes, and brachyhypophalangia in the feet.