Digital R vertebral angiogram; Towne & oblique lateral














































Digital R vertebral angiogram; Towne & oblique lateral

Findings: Tiny 3mm aneurysm arising from the left AICA, smaller than the lesion seen on MR. There is some reflux into the right internal carotid (R ICA) on the lateral projection. Right vertebral artery (R vert). Posterior cerebral arteries (PCAs). Combined right anterior inferior and posterior inferior cerebellar arteries (R AICA/PICA).