Vasculitis
	Pruritic (non-blanchable) papules (palpable purpura) typically on the lower extremities Kidneys and intestinal tract may be involved
	Pruritic (non-blanchable) papules (palpable purpura) typically on the lower extremities Kidneys and intestinal tract may be involved Immune-complex mediated disease triggered by infection, drugs, or other antigens
	Histology: Neutrophils in and around blood vessel walls, with hemorrhage and fibrin deposition See laboratory section for additional examples of histology

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