Presentation
Bilateral flank pain.
Patient Data
Age: 8 years
Gender: Male
From the case:
Bilateral ureteropelvic junction obstruction
![](https://prod-images-static.radiopaedia.org/images/56912129/0._thumb.jpeg)
![](https://prod-images-static.radiopaedia.org/images/56912130/0._thumb.jpeg)
![](https://prod-images-static.radiopaedia.org/images/56912131/0._thumb.jpeg)
![](https://prod-images-static.radiopaedia.org/images/56912132/0._thumb.jpeg)
![](https://prod-images-static.radiopaedia.org/images/56912133/0._thumb.jpeg)
![](https://prod-images-static.radiopaedia.org/images/56912134/0._thumb.jpeg)
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Info
![](https://prod-images-static.radiopaedia.org/images/56912129/0._big_gallery.jpeg)
Bilateral hydronephrosis and delayed contrast excretion with marked pelvic dilatation and normal caliber ureter, suggesting bilateral ureteropelvic junction stenosis.
Case Discussion
This case demonstrates typical appearances of pronounced bilateral ureteropelvic junction obstruction.