title: Henoch-Schönlein purpura.
abstract: Henoch-Schönlein purpura probably results from a reaction in a host sensitized by an infective stimulus. This stimulus leads to the synthesis of IgA antibody, the presence of circulating immune complexes and a leukoclastic vasculitis involving IgA resulting in renal and dermatological manifestations. The risk factors, the causal organism and the reason for the association with IgA nephropathy remain unknown.
authors.forename: B
authors.initials: B
authors.lastname: Duquesnoy
mesh_terms: D005767:Gastrointestinal Diseases / Q000209:etiology; D006801:Humans; D011695:IgA Vasculitis / Q000150:complications / Q000175:diagnosis / Q000503:physiopathology; D007674:Kidney Diseases / Q000209:etiology; D008775:Methylprednisolone / Q000627:therapeutic use; D010956:Plasmapheresis
chemical_list: D008775:Methylprednisolone