Presentation
Right flank pain. Hydronephrosis was reported at recent ultrasonographic evaluation.
Patient Data
Age: 40 years
Gender: Male
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Frontal

Right-sided hydronephrosis and delayed excretion of contrast material associated with ballooned renal pelvis and abrupt narrowing at pelviureteric junction
The right ureter is not dilated.
Case Discussion
This case demonstrates typical appearances of pronounced right pelviureteric junction obstruction.