諸症状の著明な改善を呈した巨大髄膜腫の一症例

抄録

Meningioma is a benign tumor with no symptoms in the initial stage. It is not unusual for a meningioma to show no objective signs even in the advanced stage. Neurootological examinations are often required.
We examined a patient with a gigantic meningioma which displaced upward the tentorium on the affected side. In this case objective signs were minimal, and neurootological examinations were very important. The tumor was gigantic, but hearing, optokinetic nystagmus, smooth pursuit and ABR (auditory brainstem response) were restored after the operation. We report this unusual case and describe the neurootological examinations.