試題詳解

38.A 72-year-old woman develops a painful, indurated lesion on her lower leg. Biopsy reveals necrotizing inflammation of medium-sized arteries with fibrinoid necrosis, but nono involvement involvement of arterioles, capillaries, or venules. There is no granulomatous inflammation, and the lungs are spared. Which diagnosis best fits these findings?
(A) Leukocytoclastic (hypersensitivity) vasculitis
(B) Polyarteritis nodosa
(C) Granulomatosis with polyangiitis
(D)Microscopic polyangiitis