Korean J Dermatol.
2010 Feb;48(2):152-154.
A Case of Subungual Osteochondroma
- Affiliations
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- 1Department of Dermatology, Seoul National University College of Medicine, Seoul, Korea. khcho@snu.ac.kr
Abstract
- Subungual osteochonroma is a benign bone tumor of the fingers and toes. Clinically it may present as a slow-growing firm mass causing deformity of the overlying nail. It must be differentiated from other subungual masses such as verruca vulgaris, subungual exostosis and enchondroma. Here we present a case of subungual osteochondroma of the right 1st toe presenting as a verrucous skin lesion in an 11-year-old male. Radiographic examination showed an outgrowth of the bony tissue on the dorsum of the distal phalangeal bone beneath the nail. Histopathologic examination revealed a characteristic trabecular bone formation covered with a hyaline cartilage cap. The lesion was successfully treated by total excision and curettage of the underlying bony surface.
