多房性被膜化血腫の1症例

Multilocular Encapsulated Intracerebral Hematoma; A case report

I．はじめに

　緩徐に進行する神経症候を有し，長期間に増大傾向を示し，被膜を伴う脳内血腫症例の報告は少なく，その発生原因，臨床病態に関する詳細はよく知られていない．今回，出血を繰り返し，多房性の厚い被膜の一部にcavernous hemangiomaを有する脳内血腫の1症例を経験したので文献的考察を加え報告する．

Abstract

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 clue 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 treat-ment. A thorough survey of occult vascular malforma-tion is necessary in surgery.