Oxford Classification of IgA Nephropathy Is Applicable to Predict Long-Term Outcomes of Henoch-Schönlein Purpura Nephritis

Henöch-Schönlein purpura nephritis is a small vessel vasculitis that can involve not only the kidneys but also the gut, joints and skin, to varying extents.1 In contrast, IgA nephropathy is recognized as a renallimited, non-systemic disease.1,2 However, HenöchSchönlein purpura nephritis and IgA nephropathy share many immunological, histological and clinical features.1-3 Indeed, IgA nephropathy and HenochSchönlein purpura nephritis are thought to be related diseases.