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Pyonephrosis
Lori Mankowski Gettle, MD, MBA, FSRU; Alessandro Furlan, MD
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KEY FACTS

  • Terminology

    • Imaging

      • Top Differential Diagnoses

        • Pathology

          • Clinical Issues

            • Diagnostic Checklist

              TERMINOLOGY

              • Definitions

                • Obstructed renal collecting system containing pus or infected urine

              IMAGING

              • General Features

                • CT Findings

                  • MR Findings

                    • Ultrasonographic Findings

                      • Imaging Recommendations

                        DIFFERENTIAL DIAGNOSIS

                          PATHOLOGY

                          • General Features

                            • Gross Pathologic & Surgical Features

                              CLINICAL ISSUES

                              • Presentation

                                • Natural History & Prognosis

                                  • Treatment

                                    DIAGNOSTIC CHECKLIST

                                    • Consider

                                      • Image Interpretation Pearls

                                        Selected References

                                        1. Diamond M et al: Imaging of nontraumatic upper urinary tract emergencies. Semin Roentgenol. 55(2):180-96, 2020
                                        2. Patiño A et al: Review of imaging findings in urinary tract infections. Semin Ultrasound CT MR. 41(1):99-105, 2020
                                        3. Das CJ et al: Multimodality imaging of renal inflammatory lesions. World J Radiol. 6(11):865-73, 2014
                                        4. Erol A et al: A giant case of pyonephrosis resulting from nephrolithiasis. Case Rep Urol. 2014:161640, 2014
                                        5. Tonolini M et al: Cross-sectional imaging of iatrogenic complications after extracorporeal and endourological treatment of urolithiasis. Insights Imaging. 5(6):677-89, 2014
                                        6. Li AC et al: Emergent percutaneous nephrostomy for the diagnosis and management of pyonephrosis. Semin Intervent Radiol. 29(3):218-25, 2012
                                        7. Ramsey S et al: Evidence-based drainage of infected hydronephrosis secondary to ureteric calculi. J Endourol. 24(2):185-9, 2010
                                        8. Craig WD et al: Pyelonephritis: radiologic-pathologic review. Radiographics. 28(1):255-77; quiz 327-8, 2008
                                        9. Jain KA: Transitional cell carcinoma of the renal pelvis presenting as pyonephrosis. J Ultrasound Med. 26(7):971-5, 2007
                                        10. Geoghegan T et al: MR urography depiction of fluid-debris levels: a sign of pyonephrosis. AJR Am J Roentgenol. 185(2):560, 2005
                                        11. Browne RF et al: Imaging of urinary tract infection in the adult. Eur Radiol. 14 Suppl 3:E168-83, 2004
                                        12. Cova M et al: Diffusion-weighted MRI in the evaluation of renal lesions: preliminary results. Br J Radiol. 77(922):851-7, 2004
                                        13. Chan JH et al: MR diffusion-weighted imaging of kidney: differentiation between hydronephrosis and pyonephrosis. Clin Imaging. 25(2):110-3, 2001
                                        14. Fultz PJ et al: Computed tomography of pyonephrosis. Abdom Imaging. 18(1):82-7, 1993
                                        15. Subramanyam BR et al: Sonography of pyonephrosis: a prospective study. AJR Am J Roentgenol. 140(5):991-3, 1983
                                        16. Yoder IC et al: Pyonephrosis: imaging and intervention. AJR Am J Roentgenol. 141(4):735-40, 1983
                                        Related Anatomy
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                                        Related Differential Diagnoses
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                                        References
                                        Tables

                                        Tables

                                        KEY FACTS

                                        • Terminology

                                          • Imaging

                                            • Top Differential Diagnoses

                                              • Pathology

                                                • Clinical Issues

                                                  • Diagnostic Checklist

                                                    TERMINOLOGY

                                                    • Definitions

                                                      • Obstructed renal collecting system containing pus or infected urine

                                                    IMAGING

                                                    • General Features

                                                      • CT Findings

                                                        • MR Findings

                                                          • Ultrasonographic Findings

                                                            • Imaging Recommendations

                                                              DIFFERENTIAL DIAGNOSIS

                                                                PATHOLOGY

                                                                • General Features

                                                                  • Gross Pathologic & Surgical Features

                                                                    CLINICAL ISSUES

                                                                    • Presentation

                                                                      • Natural History & Prognosis

                                                                        • Treatment

                                                                          DIAGNOSTIC CHECKLIST

                                                                          • Consider

                                                                            • Image Interpretation Pearls

                                                                              Selected References

                                                                              1. Diamond M et al: Imaging of nontraumatic upper urinary tract emergencies. Semin Roentgenol. 55(2):180-96, 2020
                                                                              2. Patiño A et al: Review of imaging findings in urinary tract infections. Semin Ultrasound CT MR. 41(1):99-105, 2020
                                                                              3. Das CJ et al: Multimodality imaging of renal inflammatory lesions. World J Radiol. 6(11):865-73, 2014
                                                                              4. Erol A et al: A giant case of pyonephrosis resulting from nephrolithiasis. Case Rep Urol. 2014:161640, 2014
                                                                              5. Tonolini M et al: Cross-sectional imaging of iatrogenic complications after extracorporeal and endourological treatment of urolithiasis. Insights Imaging. 5(6):677-89, 2014
                                                                              6. Li AC et al: Emergent percutaneous nephrostomy for the diagnosis and management of pyonephrosis. Semin Intervent Radiol. 29(3):218-25, 2012
                                                                              7. Ramsey S et al: Evidence-based drainage of infected hydronephrosis secondary to ureteric calculi. J Endourol. 24(2):185-9, 2010
                                                                              8. Craig WD et al: Pyelonephritis: radiologic-pathologic review. Radiographics. 28(1):255-77; quiz 327-8, 2008
                                                                              9. Jain KA: Transitional cell carcinoma of the renal pelvis presenting as pyonephrosis. J Ultrasound Med. 26(7):971-5, 2007
                                                                              10. Geoghegan T et al: MR urography depiction of fluid-debris levels: a sign of pyonephrosis. AJR Am J Roentgenol. 185(2):560, 2005
                                                                              11. Browne RF et al: Imaging of urinary tract infection in the adult. Eur Radiol. 14 Suppl 3:E168-83, 2004
                                                                              12. Cova M et al: Diffusion-weighted MRI in the evaluation of renal lesions: preliminary results. Br J Radiol. 77(922):851-7, 2004
                                                                              13. Chan JH et al: MR diffusion-weighted imaging of kidney: differentiation between hydronephrosis and pyonephrosis. Clin Imaging. 25(2):110-3, 2001
                                                                              14. Fultz PJ et al: Computed tomography of pyonephrosis. Abdom Imaging. 18(1):82-7, 1993
                                                                              15. Subramanyam BR et al: Sonography of pyonephrosis: a prospective study. AJR Am J Roentgenol. 140(5):991-3, 1983
                                                                              16. Yoder IC et al: Pyonephrosis: imaging and intervention. AJR Am J Roentgenol. 141(4):735-40, 1983