[Urine ascites in renal transplantation]

To report a case of urinary ascites secondary to an urinoma produced by a pielic and proximal ureter fistula after kidney transplantation in a 21 year old male patient.

Diagnosis was established by biochemical analysis of the perirenal fluid collection and ascitic fluid, and conservative management of the urinary tract by percutaneous nephrostomy was undertaken.

Surgical repair of the fistulae solved the case.

Urinary ascites is an unusual complication after kidney transplantation. Urinary tract fistula is the etiology in most of the cases although it can be idiopathic. In the case of urinary tract fistulae, conservative management can solve the case and surgical repair is the option when conservative treatment fails.