Coil embolization of intradural pseudoaneurysms caused by arterial injury during surgery: Report of two cases

Intradural pseudoaneurysms arose in two patients as a result of arterial in jury incurred during surgery. In the first patient, the pseudoaneurysm deve loped in the middle cerebral artery, at the site of vessel perforation duri ng aneurysmal surgery, In the second patient, the pseudoaneurysm developed in the anterior communicating artery after removal of a tuberculum sellae m eningioma, These aneurysms had small ostia and were successfully embolized with electrolytically detachable coils. The clinical features and the treat ment of intracranial pseudoaneurysms are discussed.