Intracranial Aneurysms in Identical Twins: Case Report

ABSTRACT

Intracranial aneurysms are usually regarded as congenital in origin but their etiology is unknown. The occurrence of familial aggregation of intracranial aneurysm is rare but well documented, and suggests a hereditary basis for some intracranial aneurysms. We experienced two cases of intracranial aneurysm in monozygotic twin brothers and reviewed literatures.