Purulent collection arising from unresolved pyelonephritis
IMAGING
General Features
Ultrasonographic Findings
CT Findings
Imaging Recommendations
DIFFERENTIAL DIAGNOSIS
PATHOLOGY
General Features
Microscopic Features
CLINICAL ISSUES
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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
Harvey CJ et al: Role of US contrast agents in the assessment of indeterminate solid and cystic lesions in native and transplant kidneys. Radiographics. 35(5):1419-30, 2015
Fontanilla T et al: Acute complicated pyelonephritis: contrast-enhanced ultrasound. Abdom Imaging. 37(4):639-46, 2012
Heller MT et al: Acute conditions affecting the perinephric space: imaging anatomy, pathways of disease spread, and differential diagnosis. Emerg Radiol. 19(3):245-54, 2012
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KEY FACTS
Terminology
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TERMINOLOGY
Definitions
Purulent collection arising from unresolved pyelonephritis
IMAGING
General Features
Ultrasonographic Findings
CT Findings
Imaging Recommendations
DIFFERENTIAL DIAGNOSIS
PATHOLOGY
General 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
Harvey CJ et al: Role of US contrast agents in the assessment of indeterminate solid and cystic lesions in native and transplant kidneys. Radiographics. 35(5):1419-30, 2015
Fontanilla T et al: Acute complicated pyelonephritis: contrast-enhanced ultrasound. Abdom Imaging. 37(4):639-46, 2012
Heller MT et al: Acute conditions affecting the perinephric space: imaging anatomy, pathways of disease spread, and differential diagnosis. Emerg Radiol. 19(3):245-54, 2012
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