<prompt> Which of the following is a feature of temporal arteritis?Granulomatous vasculitisGiant cell arteritisNecrotizing vasculitisLeucocytoclastic vasculitis  <response>: Giant-cell temporal arteritis is a chronic, typically granulomatous inflammation of large to small-sized arteries that affects principally the arteries in the headespecially the temporal arteriesbut also the vertebral and ophthalmic arteries Histopathologically, the disease is a panarteritis with inflammatory mononuclear cell infiltrates within the vessel wall with frequent giant cell formation. Leukocytoclastic Vasculitis also known as Microscopic Polyarteritis: it is a necrotizing vasculitis affecting arteriolescapillariesvenules in which all lesions are of the same age. Granulomatous inflammation is absent 