an observation up to 6 years after biopsy allowed us to isolate a group of patients with a steady good renal function : this group is characterized by : a longer mean duration of nephropathy before observation , a lower incidence of nephrotic syndrome ( ns ) , absence of renal failure at time of biopsy , a higher incidence of increased mesangial areas at light microscopy , a lower percentage of glomerular capillary walls thickening , a higher incidence of amyloid deposits on vessels but not on glomerular capillaries , a definite more elevated presence of ig and c3 over mesangium and glomerular capillary walls .
C0022658
nephropathy
C0027726
nephrotic syndrome