Figure 8: Anteroposterior view of the left internal carotid artery angiography shows a blister-like aneurysm at the intracranial bifurcation (a). Note the small pseudoaneurysm (arrow in (a)) at the dome of the aneurysmal sac, corresponding to the image seen on the CT (Figure 7), and the spasm in the supraclinoid portion of the carotid artery. The posttreatment angiography shows successful obliteration of the aneurysm with stent and a single platinum coil (b).