Below is an instruction from Human. Write a response.
    ### Instruction:
    What is (are) Vasculitis Syndromes of the Central and Peripheral Nervous Systems ?
    ### Response:
    Vasculitis is an inflammation of blood vessels, which includes the veins, arteries, and capillaries. Inflammation occurs with infection or is thought to be due to a faulty immune system response. It also can be caused by other immune system disease, an allergic reaction to medicines or toxins, and by certain blood cancers.
    