Bilateral single ectopic ureters with hypoplastic bladder: how should we treat these challenging entities?

Bilateral single ectopic ureters with hypoplastic bladder are rare and difficult to treat. Urinary diversion (e.g. by ileal conduit) is usually performed because of small bladder capacity. We report a case treated by staged operation without urinary diversion or bladder augmentation. The outcome shows that ureterovesicostomy between the dilated ureter and the bladder is a feasible method to increase capacity for bilateral single ectopic ureters with hypoplastic bladder.