“…Post-transplant glomerulonephritis is frequent, but classification as de novo, recurrent or indeterminate is difficult since the primary renal disease is rarely diagnosed. Such glomerulonephritis can be due to persistent systemic factors, 13 donor glomerular disease, 14 ischemic lesions, hypertension or secondary to acute rejection episodes. 8 Following its introduction, cyclosporine has been found to be a further factor causing glomerular lesions 15,16 Histologically, glomerular lesions can be superposed since, as with ischemia, hypertension and immunological or toxic factors, the pathogenic mechanisms can lead to endothelial injury 17 which in turn produces focal and segmental glomerulosclerosis, usually in the vascular pole of the glomerulus.…”