Successful endovascular occlusion of a ruptured distal anterior inferior cerebellar artery aneurysm of the caudal trunk: case report.

SUMMARY: We report a rare case of a ruptured distal anterior inferior cerebellar artery (possibly dissecting) aneurysm of the caudal trunk, successfully treated by endovascular occlusion. A 41-yearold man presented with sudden severe headache and drowsiness. On the day of ictus, conventional angiography was performed to make the above diagnosis, followed by endovascular occlusion of the sac and the parent artery. The patient recovered completely without any neurologic deficit after treatment. Endovascular occlusion could be a safe and effective treatment option in a case of a ruptured distal AICA aneurysm of the caudal trunk.