The present term of IgA nephropathy encompasses two previously defined diseases, usually known by their eponyms: Berger’s disease, in which the IgA deposition is limited to the kidney, and Henoch-Shönlein, in which IgA nephropathy is a part of a systemic vasculitis that could involve the skin and the gastro-intestinal tract, with asymmetric acute osteoarthritis [2,3]. Here, CD79A is linked to IgA glomerulonephritis.