Cerebral amyloid angiopathy 2012-07-18T08:39:48Z UMLS:C0085220 Amyloid deposition in the walls of leptomeningeal and cortical arteries, arterioles, and less often capillaries and veins of the central nervous system. Vascular beta-amyloid deposition in the walls of small to medium-sized, blood vessels (mostly arterial) of the central nervous system. Cerebral amyloid angiopathy mostly occurs in the sporadic form in the elderly, while rare familial forms occur in younger patients and are generally lead to more severe clinical manifestations. Extracellular deposition of the amyloid protein in the brain is associated with neurologic and physiological disease progression. SNOMEDCT_US:230724001 HP:0011970 Amyloid deposition by anatomical site