Purpura rheumatica:  a type of allergic cutaneous arteriolitis.
D006801:Humans; D011695:IgA Vasculitis / Q000473:pathology*; D011693:Purpura; D012216:Rheumatic Diseases / Q000150:complications*; D018366:Vasculitis, Leukocytoclastic, Cutaneous
PURPURA, NONTHROMBOPENIC/pathology; RHEUMATISM/complications