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Figure 2 Preoperative angiograms (A and B) from Patient 2 show a 99% stenosis of the left internal carotid artery (ICA) (arrow in A) distal to a common carotid artery stenosis (arrowhead in A). The right ICA is occluded at its origin (arrow in B). Four days following stenting, a computerized tomography scan (C) shows a left frontal lobe, confluent hematoma.