Presentation
Right flank pain.
Patient Data
Age: 20 years
Gender: Male
From the case:
Ureteropelvic junction obstruction
![](https://prod-images-static.radiopaedia.org/images/56384025/110001_thumb.jpeg)
![](https://prod-images-static.radiopaedia.org/images/56384026/110002_thumb.jpeg)
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![](https://prod-images-static.radiopaedia.org/images/56384031/22_thumb.jpeg)
![](https://prod-images-static.radiopaedia.org/images/56384032/330001_thumb.jpeg)
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Info
![](https://prod-images-static.radiopaedia.org/images/56384025/110001_big_gallery.jpeg)
Right hydronephrosis and delayed contrast excretion with marked pelvic dilatation and normal caliber ureter, suggesting stenosis of the ureteropelvic junction.
Case Discussion
This case demonstrates typical appearances of pronounced right pelviureteric junction obstruction.