Schönlein-Henoch syndrome.
D002648:Child; D006417:Hematuria / Q000209:etiology; D006801:Humans; D011695:IgA Vasculitis / Q000150:complications / Q000175:diagnosis* / Q000209:etiology; D009393:Nephritis / Q000209:etiology; D011379:Prognosis; D011507:Proteinuria / Q000209:etiology