Below is an instruction from Human. Write a response.
    ### Instruction:
    What is (are) Hereditary cerebral hemorrhage with amyloidosis ?
    ### Response:
    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.
    