A complete pyelo-uretero-vesical duplication.

A complete pyelo-ureteral duplication with a palpable pelvic mass giving urinary infection and a slight urinary incontinence is reported. An intravenous pyelography demonstrated that the renal calyces on the left side were reduced in number compared to those present on the right side. Renal resection and a pyelo-ureteral resection was performed. A brief survey of the embryological basis for this anomaly is presented.