[Pyeloureteral lieberkuhn adenocarcinoma after trans-intestinal ureterostomy for bladder exstrophy]

The authors report a case of pyeloureteric adenocarcinoma in a urinary diversion inserted for bladder exstrophy and in a context of chronic pyelonephritis secondary to renal stones. The various aetiopathogenic hypotheses are discussed. Renal stones and chronic inflammation very probably played an important role in the development of this type of adenocarcinoma in the urothelium.