True Posterior Communicating Artery Aneurysm : Case Report

A 47-year-old male presented with a ruptured "true" posterior communicating artery aneurysm(Pcom AN)manifesting as semicoma and left hemiparesis. An open direct surgery could not be performed because his neurological state was critical in the acute stage. He died of rebleeding of the aneurysm before the intentional delayed operation was performed. In general, a "true" posterior communicating artery aneurysm is rare. Diagnosis and treatments of patients with this aneurysm, particularly those in a poor neurological state are discussed.