An adult with juvenile hyaline fibromatosis of the foot.

An unusual consideration in the differential diagnosis of benign, solid tumors of the foot is juvenile hyaline fibromatosis, which only superficially resembles the better known myofibromatosis. The onset of the typical cutaneous lesions of this affliction, more frequently found in the head, trunk, or upper extremity, usually begins in childhood, with a progressive increase in their size and number. No cure is known, but early surgical excision of smaller lesions will minimize bony erosion and skin ulceration that otherwise risks toe amputation, thereby preserving function and a reasonable esthetic result. Incomplete excisions are doomed to recurrence, but, fortunately, this normally is a slowly growing tumor.