Ectopic insertion of the ureter is rare urinary tract anomaly, inserting into nearby pelvic organs such as the seminal vesicle, prostatic urethra, or vagina. It is usually associated with duplex kidney anomaly. According to the Weigert-Meyer law, the upper pole moiety ureter drains infero-medial to the normal lower moiety ureter, and so it is more likely for ectopic ureteral insertion.

Here, this case demonstrates duplex kidney with double ureter and ectopic insertion of the right upper moiety ureter into the prostatic urethra. There is moderate dilatation of the upper moiety of the right kidney and its ureter, and secondary atrophic changes of the right renal upper pole.

In males, the prostatic urethra is the commonest site of ectopic insertion, accounting for ~50%. Delayed contrast excretory phase in CT urography is the most sensitive, economic, and readily available test for diagnosing ectopic ureters ¹.