[Subungual exostosis of the digits]

From 1980 to 1990, twenty-two patients with subungual exostosis were treated in PUMC Hospital and the Sixth Hospital of Beijing. The incidence of subungual exostosis accounted for 4.6% of all bone tumor. Post-adolescents and young adults were commonly affected. The female:male ratio was 1.75 to 1. The great toe was the most commonly affected site. Radiological findings were diagnostic, and local tumor excision is the treatment of choice.