Vasculitis.
D001167:Arteritis; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D007249:Inflammation; D008297:Male; D010859:Pigmentation Disorders; D010915:Pityriasis; D010488:Polyarteritis Nodosa / Q000175:diagnosis / Q000473:pathology; D012867:Skin / Q000098:blood supply; D012871:Skin Diseases / Q000145:classification / Q000175:diagnosis; D014652:Vascular Diseases / Q000145:classification