Benign fibrous histiocytoma of the rib.

Benign fibrous histiocytoma (BFH) of the bone is a rare tumor which most commonly involves the wing of the ilium. Patients range from 5 to 75 years in age and no sex predilection has been noticed. Until recently BFH was considered to be a variant of metaphyseal fibrous defect (including fibrous cortical defect, non-ossifying fibroma etc.). However, based on radiological and clinical features BFH has now been assigned a separate category with different prognostic implications. Only about 70 cases of BFH have been reported in the literature so far. We report a BFH of the rib in a 32 year-old female.