We report herein a rase of subungual exostosis in the great toe of 16-year-old female student which was confirmed by histopathologic and radiologic findings.

Histopathologic examination showed that the mass was ooeered by a dense fibrous tissue which merged into a fibrocartilage cap and bone.

Computed tomography showed a well defined, oval shaped, radiopacity of bony density capped by a radiolucency.