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: Medicine
[{'content': 'In which of the following vasculitis lung involvement does not occur: \nSelect and explain. \nA. Eosoniphilic granulomatosis with vasculitis, B. Polyaeritis nodosa (PAN), C. Microscopic polyangitis, D. Granulomatosis with polyangitis', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Answer- B. Polyaeritis nodosa (PAN)Microscopic polyangiitis (microscopic polyaeritis, hypersensitivity, or leukocytoclastic vasculitis): This type of necrotizing vasculitis generally affects aerioles, capillaries, and venule.Wegener granulomatosis (Granulomatosis with polyangitis)- is a necrotizing vasculitis characterized by th e triad ofacute necrotizing granulomasnecrotizing or granulomatous vasculitisrenal disease in the form of focal necrotizing often crescentic, glomerulitis"Churg- Strauss syndrome(allergic granulumatosis and angiitis) is a multisystem diseases with cutaneous involvement gastrointestinal tract bleeding, and renal disease.', 'role': 'assistant'}]