Peripheral nerve hamartoma with macrodactyly in the hand: Report of three cases and review of the literature.

Two patients with hamartomas of the median nerve and one with hamartoma of the ulnar nerve associated with macrodactyly are described. Nineteen similar cases of this association have been found in the literature. There is evidence that these two conditions are part of a localized regional growth disturbance. This type of macrodactyly should be differentiated from neurofibromatosis.