Pediatric Radiology > Genitorinary > Hydronephrosis > Ureterocele


Ureterocele is an abnormal dilatation of the intramuscular portion of the ureter within the bladder. Ureteroceles may be simple or ectopic. Simple ureteroceles are in an otherwise normally positioned ureter. Simple ureteroceles are usually seen in adults. Ectopic ureteroceles are associated with the upper moiety of a duplicated collecting system which inserts ectopically into the bladder. The ectopic ureterocele results in obstruction of the upper pole moiety and can contribute to reflux of the lower pole moiety by mass effect. Ureteroceles are best demonstrated during the early filling phase of the VCUG. Ureteroceles can also be demonstrated on ultrasound.
VCUG of ureterocele US of ureterocele

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