Henoch-Schönlein purpura.
Henoch-Schönlein purpura commonly occurs in children at about age five. There is no known etiologic agent. The illness is characterized by skin rash, joint pain, edema and gastrointestinal symptoms. Laboratory tests are not diagnostic. Although there is no specific treatment, steroids may help prevent serious gastrointestinal complications. Prognosis is good, except for those patients with advancing renal disease.
D002675:Child, Preschool; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D011695:IgA Vasculitis / Q000175:diagnosis* / Q000209:etiology / Q000473:pathology / Q000628:therapy; D011379:Prognosis; D012867:Skin / Q000473:pathology