[Vascular malformation of posterior cerebral artery in supertentorium]

Seventeen cases of vascular malformation of posterior cerebral artery in supertentorium from 1973 to 1991 are reported. These patients accounted for 8.8% of the total supertentorial vascular malformations during the same period. Their ages ranged from ten to forty-eight years with an average of thirty-one years. The vascular malformation was located in the occipital lobe or under the temporal lobe. Its main blood supply was from the basilar artery. Headache and hemorrhage were common clinical manifestations. Some cases had a defect of the visual field. Vertebral angiography is necessary for diagnosis of this disease. All the seventeen cases were operated without any death. The operative approach and experience in seeking for the vascular malformation during the operation are discussed.