A rare case of multiple urological anomalies is presented. The chief complaint of the patient, a 12-year-old girl, was urinary incontinence. Radiologic and endoscopic examinations revealed that the patient had a normal left kidney and ureter, a left ectopic blind-ending ureter that opened near the neck of the bladder, and right complete double ureters with an ectopic orifice that opened on the left of the external urethral meatus. This orifice was responsible for her urinary incontinence. Right ureteroneocystostomy was performed and the incontinence was cured. An attempt was made to explain the embryological origin of the anomalies observed in this case. We postulated that during development, on the left, there were three ureteral buds on the mesonephric duct. The first bud was at the normal position and drained the left kidney in a normal manner. The second bud was cranial from the normal position on the mesonephric duct and was associated with growth in an abnormal direction. This bud made contact with the upper portion of the right metanephric mass. The last bud grew between the two aforementioned buds. This bud was not draped by the metanephric mass and became the blind-ending ureter. On the right, one ureteral bud was located on the mesonephric duct and it made contact with a metanephric mass that became the right kidney. The upper part of the right kidney was drained by the ureter that had originally been located on the left mesonephric duct. This condition should be termed crossed ureteral ectopia rather than crossed renal ectopia, since the ureter was the structure that crossed.

Keywords:
Ureteral abnormalities, Ectopia
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© 1995 S. Karger AG, Basel
1995
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