Persistent trigeminal artery associated with aneurysm of the middle cerebral artery: case report and literature review

The authors report a case of persistent primitive trigeminal artery angiographically demonstrated as an incidental finding. The persistent primitive trigeminal artery was associated with an aneurysm arising from the circle of Willis in the middle cerebral artery territory. The literature is reviewed and the embryology involved is related.

persistent trigeminal artery; cerebral aneurysm; embriology