Ventral Scapular Osteochondroma in Hereditary Multiple Exostosis.

Hereditary multiple exostosis is a rare, autosomal dominant, highly penetrant genetic disorder characterized by the development of osteochondromas on the metaphysis of long and flat bones. The development of osteochondromas on the scapula is unusual but has been reported. Here, we present a case of an osteochondroma of the ventral scapula with preoperative concern for invasion into the second rib. Through an open approach, the lesion was found to be well isolated within a bursa, and it was resected without complication. The patient had a short hospital stay with good functional and cosmetic results.