Cerebral amyloid angiopathy (CAA) is also known as congophilic angiopathy or cerebrovascular amyloidosis.

CAA may affect patients over age 45, but is most common in patients over age 65, and becomes more common with increasing age.

The most common form of CAA is the sporadic form associated with aging. This type of CAA usually causes lobar hemorrhage, which may recur in different lobes of the brain.

No. The most common cause of intracerebral hemorrhage is high blood pressure (hypertension).

CAA may be found during an autopsy in over one-third of persons over age 60, even though they may not have had brain hemorrhage, stroke, or other manifestations of the disease during life.