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Illustration of the relevant anatomy surrounding the right carotico-oculomotor triangle. ACP, anterior clinoid process; DR, distal carotid dural ring; ON, optic nerve; ICA, internal carotid artery; MCA, middle cerebral artery; PCoA, posterior communicating artery; III, cranial nerve III; ACA, anterior cerebral artery. Copyright © 2005 by The Cleveland Clinic Foundation, Cleveland, Ohio. Reprinted with permission.
