FIG 1. A 49-year-old woman with a small saccular aneurysm.

A, Anteroposterior carotid angiogram shows the PTA (arrow) and a small saccular aneurysm at the basilar-superior cerebellar bifurcation (arrowhead).

B, Angiogram, after embolization with a GDC, shows partial opacification of the fundus of the aneurysm.