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(a-c) Left internal carotid artery digital subtraction cerebral angiography-lateral (a), anteroposterior (b) and oblique (c) images showing a giant left cavernous carotid artery aneurysm, (d) computed tomography angiogram (postoperative – before carotid ligation) showing a patent high-flow saphenous vein graft from the cervical external carotid artery to middle cerebral artery
