[Syndrome of the pyelo-ureteral junction of the graft after kidney transplantation. Apropos of 2 cases].

: We report 2 cases of decompensation of a pelviureteric obstruction in a transplanted kidney. In one case, the pyeloureteral obstruction was discovered intraoperatively during grafting (cadaver kidney) and was corrected at that time. In the other case, the obstruction was decompensated one month after grafting (kidney taken from a living donor with a very discrete bilateral junction syndrome) and required surgical treatment. The procedure used in both cases was a pyelopyelic anastomosis after nephrectomy of the recipient's kidney.