暴发性紫癜又名坏死性紫癜,是一种罕见的急性、严重的皮肤出血性梗塞和坏死,发生在各种感染的病程中或紧随感染之后。目前病因不明,可能为一种过敏反应所致的急性坏死性血管炎伴血管内血栓引起血管阻塞导致组织坏死或坏疽,主要见于儿童。目前国内报道较少[1],最近我们发现一例, Fulminant purpurin, also known as necrotizing purpura, is a rare acute, severe skin bleed infarct and necrosis that occurs during the course of various infections or immediately after infection. At present, the cause is unknown. It may be an acute necrotizing vasculitis caused by an allergic reaction with blood clots caused by intravascular thrombosis leading to tissue necrosis or gangrene, mainly seen in children. At present, less reported [1], we recently found a case,