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KEY FACTS
Imaging
Pathology
Clinical Issues
Diagnostic Checklist
TERMINOLOGY
Abbreviations
- Acute pyelonephritis (AP)
Definitions
- Renal parenchymal infection
- Different from pyelitis (inflammation of renal pelvis) or pyonephrosis (infection plus collecting system obstruction)
IMAGING
General Features
Ultrasonographic Findings
CT Findings
Nuclear Medicine Findings
Imaging Recommendations
DIFFERENTIAL DIAGNOSIS
PATHOLOGY
General Features
Gross Pathologic & Surgical Features
Microscopic Features
CLINICAL ISSUES
Presentation
Demographics
Natural History & Prognosis
Treatment
DIAGNOSTIC CHECKLIST
Consider
Image Interpretation Pearls
Selected References
- Diamond M et al: Imaging of nontraumatic upper urinary tract emergencies. Semin Roentgenol. 55(2):180-96, 2020
- Hosokawa T et al: Comparison of imaging findings between acute focal bacterial nephritis (acute lobar nephronia) and acute pyelonephritis: a preliminary evaluation of the sufficiency of ultrasound for the diagnosis of acute focal bacterial nephritis. Emerg Radiol. 27(4):405-12, 2020
- Patiño A et al: Review of imaging findings in urinary tract infections. Semin Ultrasound CT MR. 41(1):99-105, 2020
- Lee YJ et al: Unilateral and bilateral acute pyelonephritis: differences in clinical presentation, progress and outcome. Postgrad Med J. 90(1060):80-5, 2014
- Faletti R et al: Diffusion-weighted imaging and apparent diffusion coefficient values versus contrast-enhanced MR imaging in the identification and characterisation of acute pyelonephritis. Eur Radiol. 23(12):3501-8, 2013
- Fontanilla T et al: Acute complicated pyelonephritis: contrast-enhanced ultrasound. Abdom Imaging. 37(4):639-46, 2012
- Ifergan J et al: Imaging in upper urinary tract infections. Diagn Interv Imaging. 93(6):509-19, 2012
- Chen KC et al: The role of emergency ultrasound for evaluating acute pyelonephritis in the ED. Am J Emerg Med. 29(7):721-4, 2011
- Cavorsi K et al: Acute pyelonephritis. Ultrasound Q. 26(2):103-5, 2010
- Dell'Atti L et al: Clinical use of ultrasonography associated with color Doppler in the diagnosis and follow-up of acute pyelonephritis. Arch Ital Urol Androl. 82(4):217-20, 2010
- Craig WD et al: Pyelonephritis: radiologic-pathologic review. Radiographics. 28(1):255-77; quiz 327-8, 2008
- Demertzis J et al: State of the art: imaging of renal infections. Emerg Radiol. 14(1):13-22, 2007
Related Anatomy
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References
Tables
Tables
KEY FACTS
Imaging
Pathology
Clinical Issues
Diagnostic Checklist
TERMINOLOGY
Abbreviations
- Acute pyelonephritis (AP)
Definitions
- Renal parenchymal infection
- Different from pyelitis (inflammation of renal pelvis) or pyonephrosis (infection plus collecting system obstruction)
IMAGING
General Features
Ultrasonographic Findings
CT Findings
Nuclear Medicine Findings
Imaging Recommendations
DIFFERENTIAL DIAGNOSIS
PATHOLOGY
General Features
Gross Pathologic & Surgical Features
Microscopic Features
CLINICAL ISSUES
Presentation
Demographics
Natural History & Prognosis
Treatment
DIAGNOSTIC CHECKLIST
Consider
Image Interpretation Pearls
Selected References
- Diamond M et al: Imaging of nontraumatic upper urinary tract emergencies. Semin Roentgenol. 55(2):180-96, 2020
- Hosokawa T et al: Comparison of imaging findings between acute focal bacterial nephritis (acute lobar nephronia) and acute pyelonephritis: a preliminary evaluation of the sufficiency of ultrasound for the diagnosis of acute focal bacterial nephritis. Emerg Radiol. 27(4):405-12, 2020
- Patiño A et al: Review of imaging findings in urinary tract infections. Semin Ultrasound CT MR. 41(1):99-105, 2020
- Lee YJ et al: Unilateral and bilateral acute pyelonephritis: differences in clinical presentation, progress and outcome. Postgrad Med J. 90(1060):80-5, 2014
- Faletti R et al: Diffusion-weighted imaging and apparent diffusion coefficient values versus contrast-enhanced MR imaging in the identification and characterisation of acute pyelonephritis. Eur Radiol. 23(12):3501-8, 2013
- Fontanilla T et al: Acute complicated pyelonephritis: contrast-enhanced ultrasound. Abdom Imaging. 37(4):639-46, 2012
- Ifergan J et al: Imaging in upper urinary tract infections. Diagn Interv Imaging. 93(6):509-19, 2012
- Chen KC et al: The role of emergency ultrasound for evaluating acute pyelonephritis in the ED. Am J Emerg Med. 29(7):721-4, 2011
- Cavorsi K et al: Acute pyelonephritis. Ultrasound Q. 26(2):103-5, 2010
- Dell'Atti L et al: Clinical use of ultrasonography associated with color Doppler in the diagnosis and follow-up of acute pyelonephritis. Arch Ital Urol Androl. 82(4):217-20, 2010
- Craig WD et al: Pyelonephritis: radiologic-pathologic review. Radiographics. 28(1):255-77; quiz 327-8, 2008
- Demertzis J et al: State of the art: imaging of renal infections. Emerg Radiol. 14(1):13-22, 2007
