Benign fibrous histocytoma of the distal radius: a report of a case and a review of the literature.

Benign fibrous histocytoma of bones is a very rare tumour and only a few cases have been reported. We report a case of 40-year-old patient with no significant previous medical history who presented with a painful lesion in his right wrist joint. Incision biopsy was done and there was a histological picture similar to a metaphyseal fibrous defect (non-ossifying fibroma). This was managed with excision of the lesion and filling the defect with cancellous and cortical bone grafts from the left iliac bone. To our knowledge, this is the second case report of a benign fibrous histocytoma involving the distal radius in adult. In this case report, we review similar cases in the literature and discuss the differential diagnoses of this lesion.