<prompt> Following will cause CNS-vasculitis except ?SLEWhipples diseaseGranulomatous vasculitisPAN  <response>: Ans. is b i.e., Whipples disease CNS Vasculitis is vasculitis involving the vessels of brain and occasionally the spinal cord. Causes of CNS vasculitis Primary angitis of CNS PACNS o If there is no underlying cause. o Also known as granulomatous angitis of nervous system. Secondary o When CNS vasculitis is due to some underlying disease, eg:- i Bechets disease ii PAN iii Wegners granulomatosis iv Connective tissue disorders - SLE, RA v Cancer - lymphoma, leukemia, lung cancer vi Drugs - Amphetamine, cocaine, Heroin Others - Fibromusular dysplasia and thrombotic thrombocytopenia purpura 