Presentation
Left flank pain with hydroureteronephrosis that reported at a recent ultrasound evaluation.
Patient Data
Nephrostogram in a patient with left-sided hydronephrosis shows a distended urinary collecting system and ureter due to a 2 cm stricture at the junction of the middle and distal third of the ureter.
Case Discussion
Nephrostogram (antegrade pyelogram) fluoroscopically evaluates the upper collecting system by introducing water-soluble contrast through the nephrostomy catheter and can be helpful to determine tube position, and assess residual stones in the upper collecting system or the level of the urinary tract stenosis.