Circle of Willis of a 90-year-old patient. Macroscopically, atherosclerotic lesions can be identified by the white vessels, whereas nondiseased arteries appear largely transparent. This case shows prominent atherosclerosis mainly in the internal carotid artery, vertebral artery, basilar artery, left middle cerebral artery, and posterior cerebral artery.
From: Ritz K, Denswil NP, Stam OC, et al. Cause and mechanisms of intracranial atherosclerosis. Circulation 2014; 130:1407. DOI:
10.1161/CIRCULATIONAHA.114.011147. Copyright © 2014 American Heart Association. Reproduced with permission from Wolters Kluwer Health. Unauthorized reproduction of this material is prohibited.
