title: Malignant fibrous histiocytoma secondary to a traumatic hematoma.
abstract: We present a case of malignant fibrous histiocytoma located in the region of the temple that corresponded to the main site of a traumatic hematoma. There are reports of malignant transformation triggered by different kinds of wounds, but the malignant transformation in a subcutaneous hematoma is rare. For chronic expanding hematoma, magnetic resonance imaging or biopsy is recommended in determining whether it is malignant, especially when the mass is growing rapidly.
authors.affiliation: Department of Neurosurgery, Rui Jin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, People's Republic of China.
authors.forename: Weiting
authors.initials: W
authors.lastname: Gu
authors.forename: Hanbing
authors.initials: H
authors.lastname: Shang
authors.forename: Weiguo
authors.initials: W
authors.lastname: Zhao
mesh_terms: D000368:Aged; D006259:Craniocerebral Trauma / Q000150:complications*; D003937:Diagnosis, Differential; D006258:Head and Neck Neoplasms / Q000209:etiology* / Q000601:surgery*; D006406:Hematoma / Q000150:complications; D051677:Histiocytoma, Malignant Fibrous / Q000209:etiology* / Q000601:surgery*; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male