Abstract
Fibro-osseous pseudotumor of the digit (FOPD), or heterotopic ossification closely related to myositis ossificans, occurs in the subcutaneous tissues of the digits. This tumor often appears as a painful and localized swelling in the soft tissues of the fingers.
We experienced a case of FOPD, without pain, in a 38-year-old man. who had been aware of a mass in his left index finger for the previous one year. No other symptoms were associated with the mass. Although we considered this tumor to be a kind of giant cell tumor, X-ray examination demonstrated calcification inside the tumor. We excised the tumor, and diagnosed it as a FOPD by histological examination.
