title: Subungual fibrous histiocytoma mimicking melanoma.
mesh_terms: D003937:Diagnosis, Differential; D005260:Female; D006214:Hallux; D018219:Histiocytoma, Benign Fibrous / Q000175:diagnosis*; D006801:Humans; D008545:Melanoma / Q000175:diagnosis*; D008875:Middle Aged; D009260:Nail Diseases / Q000175:diagnosis*; D009369:Neoplasms / Q000175:diagnosis