benign fibrous histiocytoma (MONDO_0002989) is a benign neoplasm composed of fibroblastic spindle cells in a whorled storiform pattern. It is characterized by the presence of foam cells, inflammatory cells, hemosiderin deposition and stromal hemorrhage. Also known as: benign fibrous histiocytoma (morphologic abnormality), fibrous histiocytoma, fibrous histiocytoma NOS (morphologic abnormality), fibroxanthoma, fibroxanthoma NOS (morphologic abnormality), histiocytoma, fibrous, benign.