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Ureteropelvic Junction Obstruction
Roya Sohaey, MD
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KEY FACTS

  • Imaging

    • Top Differential Diagnoses

      • Clinical Issues

        • Diagnostic Checklist

          TERMINOLOGY

          • Abbreviations

            • Ureteropelvic junction (UPJ) obstruction
          • Synonyms

            • Congenital hydronephrosis
          • Definitions

            • Upper urinary tract obstruction at UPJ

          IMAGING

          • General Features

            • 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

                                • Image Interpretation Pearls

                                  Selected References

                                  1. Rianthavorn P et al: Diagnostic accuracy of neonatal kidney ultrasound in children having antenatal hydronephrosis without ureter and bladder abnormalities. World J Urol. 33(10): 1645-50, 2015
                                  2. Kumar M et al: Fetal renal anomaly: factors that predict survival. J Pediatr Urol. 10(6):1001-7, 2014
                                  3. Nguyen HT et al: Multidisciplinary consensus on the classification of prenatal and postnatal urinary tract dilation (UTD classification system). J Pediatr Urol. 10(6):982-98, 2014
                                  4. Ross SS et al: Observation of infants with SFU grades 3-4 hydronephrosis: worsening drainage with serial diuresis renography indicates surgical intervention and helps prevent loss of renal function. J Pediatr Urol. 7(3):266-71, 2011
                                  5. Yang Y et al: Long-term follow-up and management of prenatally detected, isolated hydronephrosis. J Pediatr Surg. 45(8):1701-6, 2010
                                  6. Thomas DF: Prenatally diagnosed urinary tract abnormalities: long-term outcome. Semin Fetal Neonatal Med. 13(3):189-95, 2008
                                  7. Belarmino JM et al: Management of neonatal hydronephrosis. Early Hum Dev. 82(1):9-14, 2006
                                  8. De Siati M et al: Congenital ureteropelvic junction obstruction: definition and therapy. Arch Ital Urol Androl. 77(1):1-4, 2005
                                  9. Carr MC: Prenatal management of urogenital disorders. Urol Clin North Am. 31(3):389-97, vii, 2004
                                  10. Csaicsich D et al: Management of congenital hydronephrosis with ureteropelvic junction obstruction: the Vienna-AKH experience 1986-2001. Wien Klin Wochenschr. 116(21-22):725-9, 2004
                                  11. Csaicsich D et al: Upper urinary tract: when is obstruction obstruction? Curr Opin Urol. 14(4):213-7, 2004
                                  12. Kraus SJ: Genitourinary imaging in children. Pediatr Clin North Am. 48(6):1381-424, 2001
                                  13. Rouviere O et al: Ureteropelvic junction obstruction: use of helical CT for preoperative assessment--comparison with intraarterial angiography. Radiology. 213(3):668-73, 1999
                                  14. Anderson N et al: Detection of obstructive uropathy in the fetus: predictive value of sonographic measurements of renal pelvic diameter at various gestational ages. AJR Am J Roentgenol. 164(3):719-23, 1995
                                  Related Anatomy
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                                  Related Differential Diagnoses
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                                  References
                                  Tables

                                  Tables

                                  KEY FACTS

                                  • Imaging

                                    • Top Differential Diagnoses

                                      • Clinical Issues

                                        • Diagnostic Checklist

                                          TERMINOLOGY

                                          • Abbreviations

                                            • Ureteropelvic junction (UPJ) obstruction
                                          • Synonyms

                                            • Congenital hydronephrosis
                                          • Definitions

                                            • Upper urinary tract obstruction at UPJ

                                          IMAGING

                                          • General Features

                                            • 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

                                                                • Image Interpretation Pearls

                                                                  Selected References

                                                                  1. Rianthavorn P et al: Diagnostic accuracy of neonatal kidney ultrasound in children having antenatal hydronephrosis without ureter and bladder abnormalities. World J Urol. 33(10): 1645-50, 2015
                                                                  2. Kumar M et al: Fetal renal anomaly: factors that predict survival. J Pediatr Urol. 10(6):1001-7, 2014
                                                                  3. Nguyen HT et al: Multidisciplinary consensus on the classification of prenatal and postnatal urinary tract dilation (UTD classification system). J Pediatr Urol. 10(6):982-98, 2014
                                                                  4. Ross SS et al: Observation of infants with SFU grades 3-4 hydronephrosis: worsening drainage with serial diuresis renography indicates surgical intervention and helps prevent loss of renal function. J Pediatr Urol. 7(3):266-71, 2011
                                                                  5. Yang Y et al: Long-term follow-up and management of prenatally detected, isolated hydronephrosis. J Pediatr Surg. 45(8):1701-6, 2010
                                                                  6. Thomas DF: Prenatally diagnosed urinary tract abnormalities: long-term outcome. Semin Fetal Neonatal Med. 13(3):189-95, 2008
                                                                  7. Belarmino JM et al: Management of neonatal hydronephrosis. Early Hum Dev. 82(1):9-14, 2006
                                                                  8. De Siati M et al: Congenital ureteropelvic junction obstruction: definition and therapy. Arch Ital Urol Androl. 77(1):1-4, 2005
                                                                  9. Carr MC: Prenatal management of urogenital disorders. Urol Clin North Am. 31(3):389-97, vii, 2004
                                                                  10. Csaicsich D et al: Management of congenital hydronephrosis with ureteropelvic junction obstruction: the Vienna-AKH experience 1986-2001. Wien Klin Wochenschr. 116(21-22):725-9, 2004
                                                                  11. Csaicsich D et al: Upper urinary tract: when is obstruction obstruction? Curr Opin Urol. 14(4):213-7, 2004
                                                                  12. Kraus SJ: Genitourinary imaging in children. Pediatr Clin North Am. 48(6):1381-424, 2001
                                                                  13. Rouviere O et al: Ureteropelvic junction obstruction: use of helical CT for preoperative assessment--comparison with intraarterial angiography. Radiology. 213(3):668-73, 1999
                                                                  14. Anderson N et al: Detection of obstructive uropathy in the fetus: predictive value of sonographic measurements of renal pelvic diameter at various gestational ages. AJR Am J Roentgenol. 164(3):719-23, 1995