Presentation
Left flank pain
Patient Data
![](/packs/icon_video_small-FOK545SU.png)
![](/packs/icon_video_small-FOK545SU.png)
![](https://prod-images-static.radiopaedia.org/images/53475861/Capture_thumb.jpeg)
US shows a cystic structure projecting into the bladder at the left ureteral orifice. Shadowing echogenic focus and color comet-tail artifact in keeping with a calculus within the cystic dilatation.
Left hydroureteronephrosis.
The right ureter had no obstruction and right ureteric jets are clearly seen.
No duplicated collecting system
Case Discussion
Intravesical ureterocele known as "simple" or "orthotopic" ureterocele which is less common than the ectopic variety and almost always confined to the adult population.
US findings confirmed the diagnosis of left intravesical ureterocele with a calculus.