Presentation
Worsening intermittent right flank pain, no history of burning micturition.
Patient Data
Age: 25 years
Gender: Male
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Moderate right hydronephrosis was found with acute narrowing of ureteropelvic (UP) junction. Distal ureter is collapsed. Aberrant/accessory artery for lower pole of right kidney was crossing just above UP junction. Repeated compression by aberrant renal artery causes UPJ obstruction.
Case Discussion
This is a case of UPJ obstruction.