[Continent urinary reservoir using dilated renal pelvis of non-functioning pelvic kidney in a girl with cloacal exstrophy].

We performed construction of continent urinary reservoir in an 8-year-old girl with cloacal exstrophy who had double stoma of ileostomy and colon conduit. Preoperative evaluation revealed non-functioning right kidney with severely dilated renal pelvis and calyxes in her pelvis. Urinary reservoir was constructed using detubularized colon segment which had been used as the urinary conduit and dilated renal pelvis of non-functioning pelvic kidney. Using Mitrofanoff's principle, continent catheterizable channel was also made of the anterior wall of the renal pelvis. Postoperative course was uneventful. Reservoir capacity increased to 350 ml one and half year postoperatively and she is almost dry with clean intermittent catheterization 5 times a day. Dilated upper urinary tract is one of the ideal material for bladder enlargement that avoids the complication associated with the use of gastrointestinal tract.