Abstract
The authors report a rare case of distal posterior cerebral artery (PCA) aneurysm in a 62-year-old woman presenting with both subarachnoid and intraventricular hemorrhages. The saccular aneurysm arose from the parieto-occipital artery of the PCA projecting laterally. With the patient placed in a prone position the aneurysm was approached by a supratentorial route through an occipital craniotomy, and successfully obliterated with a Sugita's clip. The patient's postoperative course was uneventful without neurological deficits. The literature concerning aneurysms originating from the distal portion of the PCA is reviewed in the literature and the surgical approaches to the aneurysm are also discussed.
