because of significant differences in the natural history of these two glomerulopathies and the possible beneficial effects of steroid therapy in membranous nephropathy , we suggest that renal biopsies be performed in diabetic patients having persistent hematuria , sudden onset of renal failure , massive proteinuria without azotemia , retinopathy , or other evidence of microvascular disease , to uncover superimposed and treatable disorders that may influence the course of renal disease .
C0017665
membranous nephropathy
C0022646
renal