脳動静脈奇形と髄膜腫を同側性に合併した1手術例

Ipsilateral Coexistence of AVM and Meningioma:A case report

I．はじめに

　脳動静脈奇形（以下AVMと略す）と髄膜腫が同側性に合併し，しかも両者が症候性であった稀な症例を経験したので，若干の文献的考察を加えて報告する．

The authors encountered a rare case of sphenoidal ridge meningioma associated with an arteriovenous malformation in tha same cerebral hemisphere.

A 65-year-old female was admitted to our service be-cause of headache. X-ray computed tomography (X-CT) and magnetic resonance image (MRI) disclosed a huge mass with peripheral edema, diagnosed as a sphe-noidal ridge meningioma. An associated small mass was also noted in the right parahippocampal gyrus. This was confirmed by angiography as an arteriove-nous malformation (AVM). During the waiting period for surgical treatment she had fallen into coma abrupt-ly. Emergency X-CT revealed intracerebral and in-traventricular hematomas. Both lesions were resected successfully in a one stage operation. Postoperative course was uneventful. In general, AVM located in the medial temporal lobe is difficult to approach. However, in this case, the resultant large cavity obtained after re-moval of meningioma afforded us easy access to the AVM.