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Bilateral duplex system with overlooked dysplastic moiety: A rare cause of incontinence

Bilateral duplex system with ureteroceles is one of the rarest entities in urology. Incontinence in children is a frequently encountered problem; most often the cause is functional. Less often the cause could be structural such as an ectopic ureter; however bilateral complete renal duplex with bilateral ectopic ureteroceles as a cause of incontinence is even rarer. We herein report a case of bilateral duplex system ectopic ureters with ureteroceles with persistent urinary incontinence despite right upper heminephroureterectomy due to overlooked left dysplastic moiety. This article highlights the importance of thorough clinical and radiological evaluation of contralateral draining system when examining a case of unilateral complete renal duplex system with ureteral ectopia and/or ectopic ureterocele, especially in females to avoid delayed diagnosis.