DISSECTING ANEURYSM OF THE POSTERIOR CEREBRAL-ARTERY - CASE-REPORT AND REVIEW OF THE LITERATURE

Dissecting aneurysms localized to intracranial part of the vertebrobasilar circulation are a rare condition with, generally, a severe outcome. Much more rare are dissections confined to the posterior cerebral artery. We describe one such case, and review prior reports to clarify clinical, angiographic, and therapeutic aspects. Classical clinical presentation is represented by subarachnoid hemorrhage with or without mild focal deficit. Conservative management seems to be the treatment of choice. A favorable outcome is the most remarkable finding, contrasting with the usually poor prognosis of dissections in the intracranial posterior circulation.