Benign Fibrous Soft Tissue Tumors. (a) Presence of foamy histiocytes (H and E, ×10); (b) foamy histiocytes and giant cells (H and E, ×20); (c) spindle-shaped fibroblasts and histiocytes seen in storiform and fascicular pattern (H and E, ×4); (d) CD68 positive cells (×40). Benign fibrous histiocytoma: A rare case involving jaw bone. Shoor H, Pai KM, Shergill AK, Kamath AT - Contemporary clinical dentistry (2015). Not Altered. CC.