Sweet DE et al: Infiltrative renal malignancies: imaging features, prognostic implications, and mimics. Radiographics. 41(2):487-508, 2021
Diamond M et al: Imaging of nontraumatic upper urinary tract emergencies. Semin Roentgenol. 55(2):180-196, 2020
Karaosmanoglu AD et al: Imaging findings of infectious and inflammatory diseases of the urinary system mimicking neoplastic diseases. Abdom Radiol (NY). 45(4):1110-21, 2020
Patiño A et al: Review of imaging findings in urinary tract infections. Semin Ultrasound CT MR. 41(1):99-105, 2020
Vernuccio F et al: CT imaging of acute and chronic pyelonephritis: a practical guide for emergency radiologists. Emerg Radiol. 27(5):561-567, 2020
Ifergan J et al: Imaging in upper urinary tract infections. Diagn Interv Imaging. 93(6):509-19, 2012
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References
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Tables
KEY FACTS
Terminology
Imaging
Pathology
Clinical Issues
TERMINOLOGY
Abbreviations
Xanthogranulomatous pyelonephritis (XGP)
Definitions
Chronic renal inflammation usually associated with longstanding urinary calculus obstruction (75%)
Renal parenchyma is gradually replaced by lipid-laden macrophages
Greek prefix "xantho-" refers to yellow color of fat
Diffuse (> 80%) and focal (< 20%) forms
Diffuse: Due to obstruction at ureteropelvic junction
Focal or segmental: Due to obstruction of single infundibulum or 1 moiety of duplex system
Sweet DE et al: Infiltrative renal malignancies: imaging features, prognostic implications, and mimics. Radiographics. 41(2):487-508, 2021
Diamond M et al: Imaging of nontraumatic upper urinary tract emergencies. Semin Roentgenol. 55(2):180-196, 2020
Karaosmanoglu AD et al: Imaging findings of infectious and inflammatory diseases of the urinary system mimicking neoplastic diseases. Abdom Radiol (NY). 45(4):1110-21, 2020
Patiño A et al: Review of imaging findings in urinary tract infections. Semin Ultrasound CT MR. 41(1):99-105, 2020
Vernuccio F et al: CT imaging of acute and chronic pyelonephritis: a practical guide for emergency radiologists. Emerg Radiol. 27(5):561-567, 2020
Ifergan J et al: Imaging in upper urinary tract infections. Diagn Interv Imaging. 93(6):509-19, 2012
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