What is the role of noncontrast helical/spiral CT scanning in the evaluation of acute pyelonephritis (kidney infection)?

Updated: Jul 01, 2021
  • Author: Tibor Fulop, MD, PhD, FACP, FASN; Chief Editor: Vecihi Batuman, MD, FASN  more...
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Noncontrast helical/spiral CT findings may be normal in acute pyelonephritis with mild parenchymal involvement, but the findings are usually positive when the involvement is moderate or severe. It is the standard study for demonstrating gas-forming infections, hemorrhage, inflammatory masses, and obstruction.

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