Jul 3, 2024 · An ectopic ureter is a congenital renal anomaly that occurs as a result of abnormal caudal migration of the ureteral bud during its insertion to the urinary bladder. Normally the ureter drains via the internal ureteral orifice at the trigone of the urinary bladder .

Apr 13, 2025 · Usually associated with duplicated systems and involves the upper moiety ureter. In males, the ureter inserts into the prostatic urethra, seminal vesicle, ejaculatory ducts or vas deferens. In females, common insertions are urethra and vaginal vestibule. CT or MR urogram allows the identification of the ectopic ureter.

Apr 27, 2025 · 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,...

Nov 16, 2023 · E ctopic insertion of the ureter is rare urinary tract anomaly, with it inserting into nearby pelvic organs other than the urinary bladder such as the vagina, seminal vesicle or urethra. Here, there is ectopic insertion of the left ureter into the ipsilateral seminal vesicle with marked left renal pelvic dilatation and marked hydroureter.

Feb 3, 2025 · There is a duplex left renal collecting system. There is an obstructed left upper pole moiety with chronic hydronephrosis and hydroureter. There is an ectopic insertion of the upper pole ureter into the prostatic urethra. The lower pole moiety is normal with the phasic ureteric flow. Left renal lower pole simple cysts. The right renal tract is ...

Dec 8, 2024 · Considerably less common than the ectopic variety and is almost always confined to the adult population. There is a congenital prolapse of a dilated distal ureter into the bladder lumen. Where they do occur in children, they usually cause symptoms. Bilateral in about 30% of cases 2. Extravesical ureterocele (~75%)

Apr 20, 2025 · Ectopic ureter results from failure of separation of the ureteral bud from wolfian duct leading to caudal migration. Females are more affected and symptomatic as the ureter inserts distal to the external sphincter while males are asymptomatic. The more distal the ureter is inserted the worse the prognosis.

Apr 20, 2025 · Ectopic right upper moiety ureter insertion into vaginal fornix. Duplex renal collecting system is a common renal anatomical variant. In a case of complete duplication, the moieties (portions) obeys the Weigert-Meyer rule , the upper moiety ureter inserts more medial and more inferior to the lower moiety ureter and liable for obstruction.

Dec 10, 2024 · Interestingly, and explaining the Weigert-Meyer rule, the future lower pole ureter separates from Wolffian duct earlier and thus migrates superiorly and laterally as the urogenital sinus grows 9. Duplication can be variable. At one end of the spectrum, there is merely a duplication of the renal pelvis, draining via a single ureter.

Apr 26, 2025 · Ectopic insertion of the left ureter into the prostatic urethra, probably via the left seminal vesicle. Massive left hydroureter and hydronephrosis with very little renal tissue remaining. Normal right kidney.