Aneurysms of the P2P Segment of Posterior Cerebral Artery: Case Report and Surgical Steps

Figure 1

M1: first segment of middle cerebral artery; Lent. Str.A.: lateral lenticulostriates artery from the first segment of middle cerebral artery; Car. A.: internal carotid artery; P.Co.A.: posterior communicating artery; CN III: oculomotor nerve; P1: precommunicating segment of posterior cerebral artery; P2A: crural segment of postcommunicating division of posterior cerebral artery; P2P: ambient segment of postcommunicating division of posterior cerebral artery; M.P.Ch.A.: medial posterior choroid artery; P3: quadrigeminal segment of posterior cerebral artery.