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Images in disease

Last reviewed dd mmm yyyy. Last edited dd mmm yyyy

Authoring team

Characteristic patterns include:

  • prolonged vascular phase in renal artery stenosis.
  • prolonged excretory phase in upper urinary tract obstruction. Administration of frusemide distinguishes a truly obstructed kidney from one that is hydronephrotic but not obstructed. In the latter, frusemide causes a diuresis with a rapid decline in activity.

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