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': 'Which of the following is a feature of temporal arteritis? \nSelect and explain. \nA. Granulomatous vasculitis, B. Giant cell arteritis, C. Necrotizing vasculitis, D. Leucocytoclastic vasculitis', 'role': 'user'}, {'content': 'Answer: B \nExplanation: • Giant-cell (temporal) arteritis is a chronic, typically granulomatous inflammation of large to small-sized arteries that affects principally the arteries in the head—especially the temporal arteries—but also the vertebral and ophthalmic arteries\n• Histopathologically, the disease is a panarteritis with inflammatory mononuclear cell infiltrates within the vessel wall with frequent giant cell formation.\n• Leukocytoclastic Vasculitis (also known as Microscopic Polyarteritis): it is a necrotizing vasculitis affecting arterioles/capillaries/venules in which all lesions are of the same age. Granulomatous inflammation is absent', 'role': 'assistant'}]