A 68-year-old woman with a subarachnoid hemorrhage was operated on for an anterior communicating artery aneurysm demonstrated by angiography. A month later she developed intestinal hemorrhage and a selective angiography showed multiple aneurysmatic dilatations, which were compatible with angiodysplasia, to be the cause of the intestinal bleeding. This association of intracranial and extracranial aneurysms is infrequent.