amyloid angiopathy definition
Cerebral amyloid angiopathy (CAA) refers to the deposition of Î²-amyloid in the media and adventitia of small and mid-sized arteries (and, less frequently, veins) of the cerebral cortex and the leptomeninges.It is a component of any disorder in which amyloid is deposited in the brain, and it is not associated with systemic amyloidosis.