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Emphysematous Pyelonephritis
Alessandro Furlan, MD; R. Brooke Jeffrey, MD
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KEY FACTS

  • Terminology

    • Imaging

      • Top Differential Diagnoses

        • Pathology

          • Clinical Issues

            • Diagnostic Checklist

              TERMINOLOGY

              • Abbreviations

                • Emphysematous pyelonephritis (EPN)
              • Definitions

                • Necrotizing, gas-forming renal infection

              IMAGING

              • General Features

                • Radiographic Findings

                  • CT Findings

                    • Ultrasonographic Findings

                      • Imaging Recommendations

                        DIFFERENTIAL DIAGNOSIS

                          PATHOLOGY

                          • General Features

                            • Staging, Grading, & Classification

                              • Gross Pathologic & Surgical Features

                                CLINICAL ISSUES

                                • Presentation

                                  • Demographics

                                    • Natural History & Prognosis

                                      • Treatment

                                        DIAGNOSTIC CHECKLIST

                                        • Consider

                                          Selected References

                                          1. Das CJ et al: Multimodality imaging of renal inflammatory lesions. World J Radiol. 6(11):865-73, 2014
                                          2. Lu YC et al: Emphysematous pyelonephritis: clinical characteristics and prognostic factors. Int J Urol. 21(3):277-82, 2014
                                          3. Craig WD et al: Pyelonephritis: radiologic-pathologic review. Radiographics. 28(1):255-77; quiz 327-8, 2008
                                          4. Somani BK et al: Is percutaneous drainage the new gold standard in the management of emphysematous pyelonephritis? Evidence from a systematic review. J Urol. 179(5):1844-9, 2008
                                          5. Falagas ME et al: Risk factors for mortality in patients with emphysematous pyelonephritis: a meta-analysis. J Urol. 178(3 Pt 1):880-5; quiz 1129, 2007
                                          6. Portnoy O et al: Gas in the kidney: CT findings. Emerg Radiol. 14(2):83-7, 2007
                                          7. Muttarak M et al: Clinics in diagnostic imaging (99). Left emphysematous pyelonephritis. Singapore Med J. 45(7):340-2, quiz 343, 2004
                                          8. Narlawar RS et al: Imaging features and guided drainage in emphysematous pyelonephritis: a study of 11 cases. Clin Radiol. 59(2):192-7, 2004
                                          9. Grayson DE et al: Emphysematous infections of the abdomen and pelvis: a pictorial review. Radiographics. 22(3):543-61, 2002
                                          10. Huang JJ et al: Emphysematous pyelonephritis: clinicoradiological classification, management, prognosis, and pathogenesis. Arch Intern Med. 160(6):797-805, 2000
                                          11. Wan YL et al: Acute gas-producing bacterial renal infection: correlation between imaging findings and clinical outcome. Radiology. 198(2):433-8, 1996
                                          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

                                                      • Abbreviations

                                                        • Emphysematous pyelonephritis (EPN)
                                                      • Definitions

                                                        • Necrotizing, gas-forming renal infection

                                                      IMAGING

                                                      • General Features

                                                        • Radiographic Findings

                                                          • CT Findings

                                                            • Ultrasonographic Findings

                                                              • Imaging Recommendations

                                                                DIFFERENTIAL DIAGNOSIS

                                                                  PATHOLOGY

                                                                  • General Features

                                                                    • Staging, Grading, & Classification

                                                                      • Gross Pathologic & Surgical Features

                                                                        CLINICAL ISSUES

                                                                        • Presentation

                                                                          • Demographics

                                                                            • Natural History & Prognosis

                                                                              • Treatment

                                                                                DIAGNOSTIC CHECKLIST

                                                                                • Consider

                                                                                  Selected References

                                                                                  1. Das CJ et al: Multimodality imaging of renal inflammatory lesions. World J Radiol. 6(11):865-73, 2014
                                                                                  2. Lu YC et al: Emphysematous pyelonephritis: clinical characteristics and prognostic factors. Int J Urol. 21(3):277-82, 2014
                                                                                  3. Craig WD et al: Pyelonephritis: radiologic-pathologic review. Radiographics. 28(1):255-77; quiz 327-8, 2008
                                                                                  4. Somani BK et al: Is percutaneous drainage the new gold standard in the management of emphysematous pyelonephritis? Evidence from a systematic review. J Urol. 179(5):1844-9, 2008
                                                                                  5. Falagas ME et al: Risk factors for mortality in patients with emphysematous pyelonephritis: a meta-analysis. J Urol. 178(3 Pt 1):880-5; quiz 1129, 2007
                                                                                  6. Portnoy O et al: Gas in the kidney: CT findings. Emerg Radiol. 14(2):83-7, 2007
                                                                                  7. Muttarak M et al: Clinics in diagnostic imaging (99). Left emphysematous pyelonephritis. Singapore Med J. 45(7):340-2, quiz 343, 2004
                                                                                  8. Narlawar RS et al: Imaging features and guided drainage in emphysematous pyelonephritis: a study of 11 cases. Clin Radiol. 59(2):192-7, 2004
                                                                                  9. Grayson DE et al: Emphysematous infections of the abdomen and pelvis: a pictorial review. Radiographics. 22(3):543-61, 2002
                                                                                  10. Huang JJ et al: Emphysematous pyelonephritis: clinicoradiological classification, management, prognosis, and pathogenesis. Arch Intern Med. 160(6):797-805, 2000
                                                                                  11. Wan YL et al: Acute gas-producing bacterial renal infection: correlation between imaging findings and clinical outcome. Radiology. 198(2):433-8, 1996