Surgery of a Posterior Communicating Artery Aneurysm with Fetal-Type Circulation

Abstract

Inadvertent occlusion of a fetal-type posterior communicating artery in aneurysm surgery could result in posterior circulation infarction and neurological morbidity. The case of a patient with an unruptured posterior communicating artery aneurysm with lateral projection and a fetal-type posterior communicating artery is presented. The utility of the carotid-oculomotor window as a surgical corridor to safely find the fetal-type posterior communicating artery is discussed.

Keywords

• aneurysm
• posterior communicating artery
• circle of willis
• microsurgery