1989 Volume 29 Issue 5 Pages 437-439
A female who had had no previous cerebrovascular events suffered a subarachnoid hemorrhage and was referred to our hospital. Angiography revealed an anterior communicating artery aneurysm and bilateral occlusion of the middle cerebral artery at its origin. She exhibited mild ischemic symptoms after clipping of the aneurysm, possibly as a consequence of disturbance of the collateral blood flow during surgery. This is the third such case reported in the literature.