FIG 1. Patient 1. A, Lateral projection angiogram shows complete occlusion of the left middle cerebral artery with small residual left anterior cerebral artery filling.

B, Angiogram shows complete occlusion of the distal right middle cerebral artery with filling of medial and lateral lenticulostriate arteries. Note the extensive pial collateral circulation from the anterior cerebral arteries.

C, Lateral-view angiogram of the right carotid artery shows occlusion above the ophthalmic artery origin.