[Multilocular encapsulated intracerebral hematoma; a case report]

Encapsulated intracerebral hematomas mimicking a brain tumor have been reported as a rare occurrence. An additional case with a characteristic feature found on computed tomography (CT), and a clinical course is described. CT scans revealed a high density mass with peripheral low density in the brain. A hematoma was successfully removed and found to have a thick and multilobular fibrous capsule associated with cavernous hemangioma. Repeated hemorrhage due to vascular malformation was considered to have contributed to the formation of the capsule. Increasing awareness of the possibility of an encapsulated intracerebral hematoma as a clinical and pathological entity, would enable us to make a correct diagnosis and to select proper treatment. A thorough survey of occult vascular malformation is necessary in surgery.