Evolution of membranous nephropathy from a proliferative and exudative glomerulonephritis--a report of three cases...

Three adolescents with clinical nephrotic-nephritic picture were noted to have diffuse proliferative and exudative glomerulonephritis. Although focal membranous changes were noted in two of the initial biopsies, evolution into classical membranous glomerulopathy was seen in subsequent biopsies. This study suggests a relationship between these two different patterns of immune complex-associated glomerular injury, and confirms extrapolations made from experimental models of chronic serum sickness.