["De novo" glomerulonephritis in the transplanted kidney].

A case of an 11-year-old boy is presented who had developed a severe nephrotic syndrome with massive edema, ascites, hydrothorax (protein loss with the urine up to 19 gr/24 h) 7 months after a successful kidney transplantation from a 16 years dead donor and a successfully treated crisis of transplant rejection by a good tissue compatibility. The needle renal biopsy revealed membranous glomerulonephritis I-II histological stage with data of rejection crisis by a basic disease of vesicoureteral refluxes and chronic pyelonephritis. Treatment with heparin, dipyridamole, human albumin, diuretics, sandimun and prednisolone led to a substantial improvement--mastered nephrotic syndrome, lowered to 1 g/24 h proteinuria and normal renal function.