- Rare clinical entity which can lead to delayed diagnosis
- Usually a complication of a UTI or pyelonephritis
- Less often can be due to hematogenous spread from other sources of infection
- Most commonly due to Staph aureus
|Necrotic Area||Perinephric fat between the renal cortex and Gerota's fascia||Renal parenchyma|
|Cause||Pyelonephritis (majority)||Pyelonephritis (vast majority)|
|Risk of morbidity||Higher||Lower|
"UTI" frequently refers specifically to acute cystitis, but may also be used as a general term for all urinary infections; use location-specific diagnosis.
- Renal cyst
- Renal cancer
- Percutaneous drainage
- Open surgical management if patient fails antibiotics/percutaneous drainage
- Admission for IV antibiotics and drainage
- Especially if elderly or elevated BUN or creatinine
- Dembry LM, Andriole VT. “Renal and Perirenal Abscesses” Infectious Disease Clinics North America: 11, 3, (Sept 1997).
- Getting GK, Shaikh N. “Renal Abscess” Journal of EM: 31, 1 (2006): 99-100.
- Judith E, Stapczynski J. Stephan. "Urinary Tract Infections” Tintinalli's Emergency Medicine: A Comprehensive Study Guide. 7th ed. New York: McGraw-Hill, 2011. 632.
- Yen DHT, et al. “Renal Abscess: Early Diagnosis and Treatment” Am J EM: 17, 2 (March 1999).
- Shu T, Green JM, Orihuela E. “Renal and Perirenal Abscesses in Patients with Otherwise Anatomically Normal Urinary Tracts” Journal of Urology: 172 (July 2004): 148-150.