Renal biopsy ordered with diagnostic intent revealed a diffusely thickened GBM with spikes, in addition to a speckled pattern along the basement membrane stained positive with fluorescein for IgG, C3, Kappa and Lambda, confirming the diagnosis of IMN.5 Strong mesangial expression of IgA was also described, thus corroborating an association with IgA nephropathy.9 Examination with an electron microscope may show subepithelial immune deposits and foot process effacement5 and support the staging of the disease, as in the case reported. This evidence concerns the gene C3 and IgA glomerulonephritis.