Fibro-osseous pseudotumor of the digits: a rare tumor in an unusual location.

Fibro-osseous pseudotumor of the digits (FOPT) is a rare benign lesion of the hand. When FOPT originates in an unusual anatomic region (other than the digits), it can imitate a malignant neoplasm, and consequently surgical treatment can be improper. This report describes a case of FOPT that developed in an unusual anatomic region: the first dorsal-extensor compartment of the wrist.