脳動脈瘤と前頭蓋窩硬膜動静脈奇形の合併

Association of Cerebral Aneurysm and Dural Arteriovenous Malformation in the Anterior Cranial Fossa: Case report

I．はじめに

　硬膜動静脈奇形（dural AVM）の好発部位は一般に横・S状静脈洞部，および海綿静脈洞部であり，前頭蓋窩には極めて少ない．また，われわれが調べ得た範囲では脳動脈瘤とdural AVMの合併例は報告されていない．今回，われわれは破裂前交通動脈瘤に前頭蓋窩du—ral AVMを合併した1例を経験したので，文献的考察を加えて報告する．

A case of dural arteriovenous malformation (AVM) in the base of the anterior cranial fossa associated with a ruptured anterior communicating aneurysm was re-ported in a 67-year-old man. The dural AVM was fed by the left anterior ethmoidal artery and drained by the left frontal ascending vein with a varicose dilatation. The aneurysm was clipped and the dural AVM was re-moved in two stages.

Dural AVM in the base of the anterior cranial fossa is rare, and we could find only 17 previous reports.