What is the presentation of renal cortical abscess (renal carbuncle) in 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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Answer

Patients with renal cortical abscess may present with chills, fever, and flank or abdominal pain. A flank mass or a bulge in the lumbar region may be evident. Some patients have abnormal results on lung examination of the affected side (dullness to percussion, rales). Blood and urine culture results usually are negative, but the white blood cell (WBC) count is often elevated.


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