This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pathology
[{'content': 'Following will cause CNS-vasculitis except - \nSelect and explain. \nA. SLE, B. Whipples disease, C. Granulomatous vasculitis, D. None of the above', 'role': 'user'}, {'content': "Answer: B \nExplanation: CNS Vasculitis is vasculitis involving the vessels of the brain and occasionally the spinal cord.\nCauses of CNS vasculitis \nA. Primary angiitis of CNS (PACNS)\n\nIf there is no underlying cause.\nAlso known as granulomatous angiitis of the nervous system.\n\nB. Secondary\n\nWhen CNS vasculitis is due to some underlying disease, eg:-\n\n\nBehcet's disease\nPAN\nWegener's granulomatosis\nConnective tissue disorders - SLE, RA\nCancer - lymphoma, leukaemia, lung cancer\nDrugs - Amphetamine, cocaine, Heroin\nOthers - Fibromuscular dysplasia and thrombotic thrombocytopenic purpura", 'role': 'assistant'}]