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No Shinkei Geka. 1997 Dec;25(12):1137-42.

[A case of chronic expanding epidural hematoma].

[Article in Japanese]

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Department of Neurosurgery, Ishinomaki Red Cross Hospital.


A 7-year-old female was admitted to our hospital with complaints of headache and nausea following mild head injury. Computed tomography (CT) showed a small epidural hematoma (EH) in the right frontal area, but she was kept under observation because of these mild symptoms. Two weeks after admission, repeat CT showed that the EH had gradually increased in size with decreased clot density. A rim of high density was observed on the dural surface. Craniotomy was performed on the 15th day after admission to evacuate the EH. The brown-fluid hematoma was encapsulated by membrane on the dural surface and under the skull. CT 4 months after the operation-showed complete resolution of the EH. Histological examination suggested that chronic expansion of EH had occurred due to repeated hemorrhages from the dural surface membrane.

[Indexed for MEDLINE]

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