What is the role of retrograde or anterograde pyelography in the workup of azotemia?

Updated: Sep 19, 2018
  • Author: Moro O Salifu, MD, MPH, FACP; Chief Editor: Vecihi Batuman, MD, FASN  more...
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Retrograde or anterograde pyelography is of limited usefulness now that renal ultrasonography is more widely available. It may be used in patients with a high index of suspicion for hydronephrosis in whom sonograms appear normal, such as those with retroperitoneal fibrosis.

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