What is (are) Hereditary cerebral hemorrhage with amyloidosis ?
Cerebral amyloid angiopathy (CAA) is a neurological condition in which amyloid protein is deposited onto the walls of the arteries of the brain (and less frequently, veins).  Although CAA often does not cause symptoms, it may cause bleeding into the brain (hemorrhagic stroke), dementia, or neurologic episodes in some patients.  The majority of CAA cases occur in individuals who do not have a family history. However, two familial forms of CAA have been identified.