Fibrous histiocytoma of the thumb.
D000328:Adult; D018219:Histiocytoma, Benign Fibrous / Q000175:diagnosis / Q000473:pathology / Q000601:surgery; D006801:Humans; D008297:Male; D012878:Skin Neoplasms / Q000175:diagnosis / Q000473:pathology / Q000601:surgery; D013933:Thumb / Q000473:pathology