[Primary glomerulonephritis: incidence, dynamics, clinical manifestations of morphologic types (on the basis of kidney biopsies at the Department of Pathology, I. M. Sechenov Moscow Medical Academy, from 1970 to 1989)].

Incidence and clinical manifestations of main morphological variants of primary glomerulonephritis (2142 biopsies) were studied retrospectively. Correlative changes in the clinical and morphological structure of primary glomerulonephritis with the increase in the incidence of nephrotic forms (minimal alterations, focal segmental glomerulohyalinosis, membranous nephropathy) and a trend to reduce the mesangiocapillary glomerulonephritis in patients with nephrotic and nephrotic-hypertensive syndrome were noted. A bimodal distribution of patients with membranous nephropathy with increasing age probably indicate the change of etiologic factors in the age groups.