Cerebral Amyloid Angiopathy-Related Inflammation following Multiple Cancers and Chemotherapies.

Cerebral amyloid angiopathy-related inflammation (CAA-ri) is a rare autoimmune encephalopathy of aging caused by an autoantibody immune response against Aβ protein deposited in the brain of older adults affected by cerebral amyloid angiopathy (CAA) and Alzheimer's disease pathology. Its most common clinical manifestations are (sub)acute-onset cognitive and behavioral abnormalities, focal deficits, seizures, and headaches. Brain magnetic resonance imaging shows characteristic extensive and confluent white matter hyperintensities and CAA features.