Aneurysm at the fenestrated anterior cerebral artery: surgical anatomy and management.

The authors report a rare case of an aneurysm arising at fenestrated anterior cerebral artery. The embryogenesis of this anatomical variation is discussed along with the review of relevant literature. Management of such lesions depends upon the location and morphology of the aneurysms and intracranial vascular anatomy. The authors discuss various management options and highlight possible technical difficulties that can be encountered in the surgical management of this rare sub-group of aneurysms.