Cutaneous vasculitis.
D001167:Arteritis / Q000150:complications; D004893:Erythema Nodosum / Q000209:etiology; D006801:Humans; D006967:Hypersensitivity / Q000150:complications; D010488:Polyarteritis Nodosa / Q000150:complications; D011693:Purpura / Q000150:complications; D012871:Skin Diseases / Q000209:etiology*; D014652:Vascular Diseases / Q000150:complications*