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Cédric Annweiler1, Marc Paccalin2, Gilles Berrut3, Caroline Hommet4, Christian Lavigne1, Jean-Paul Saint-André5, Olivier Beauchet11Department of Geriatrics and Internal Medicine, Angers University Hospital, France; 2Department of Geriatrics, Poitiers University Hospital, France; 3Department of Geriatrics, Nantes University Hospital, France; 4Department of Geriatrics, Tours University Hospital, France; 5Department of Anatomopatholgy, Angers University Hospital, FranceAbstract: The association of angiitis of central nervous system (ACNS) with cerebral amyloid angiopathy (CAA) suggests a physiopathological relationship between these two affections. Few cases are reported in patients with Alzheimer’s disease (AD). We describe here a clinicopathological case associating ACNS, CAA, and AD. We discuss the aetiology of ACNS and its relationship with cerebral deposition of beta A4 amyloid protein (βA4).Keywords: cerebral angiopathy, Alzheimer’s disease