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Congenital Lobar Overinflation
Emily Edwards, MD
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KEY FACTS

  • Terminology

    • Imaging

      • Top Differential Diagnoses

        • Pathology

          • Clinical Issues

            • Diagnostic Checklist

              TERMINOLOGY

              • Abbreviations

                • Congenital lobar overinflation (CLO)
              • Synonyms

                • Congenital lobar emphysema 
              • Definitions

                • Hyperinflation of ≥ 1 lung lobe due to partial obstruction of bronchus
                  • Abnormal bronchus acts as 1-way valve → fluid-trapping prenatally and air-trapping postnatally

              IMAGING

              • General Features

                • Ultrasonographic Findings

                  • MR Findings

                    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. Demir OF et al: Congenital lobar emphysema: diagnosis and treatment options. Int J Chron Obstruct Pulmon Dis. 14:921-8, 2019
                                      2. Kunisaki SM et al: Current operative management of congenital lobar emphysema in children: a report from the Midwest Pediatric Surgery Consortium. J Pediatr Surg. 54(6):1138-42, 2019
                                      3. Oliver ER et al: Congenital lobar overinflation: a rare enigmatic lung lesion on prenatal ultrasound and magnetic resonance imaging. J Ultrasound Med. 38(5):1229-39, 2019
                                      4. Biyyam DR et al: Congenital lung abnormalities: embryologic features, prenatal diagnosis, and postnatal radiologic-pathologic correlation. Radiographics. 30(6):1721-38, 2010
                                      5. Adzick NS: Management of fetal lung lesions. Clin Perinatol. 36(2):363-76, x, 2009
                                      6. Liu YP et al: Congenital lobar emphysema: appearance on fetal MRI. Pediatr Radiol. 38(11):1264, 2008
                                      7. Babu R et al: Prenatal sonographic features of congenital lobar emphysema. Fetal Diagn Ther. 16(4):200-2, 2001
                                      8. Winters WD et al: Congenital masses of the lung: prenatal and postnatal imaging evaluation. J Thorac Imaging. 16(4):196-206, 2001
                                      9. Olutoye OO et al: Prenatal diagnosis and management of congenital lobar emphysema. J Pediatr Surg. 35(5):792-5, 2000
                                      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

                                                    • Congenital lobar overinflation (CLO)
                                                  • Synonyms

                                                    • Congenital lobar emphysema 
                                                  • Definitions

                                                    • Hyperinflation of ≥ 1 lung lobe due to partial obstruction of bronchus
                                                      • Abnormal bronchus acts as 1-way valve → fluid-trapping prenatally and air-trapping postnatally

                                                  IMAGING

                                                  • General Features

                                                    • Ultrasonographic Findings

                                                      • MR Findings

                                                        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. Demir OF et al: Congenital lobar emphysema: diagnosis and treatment options. Int J Chron Obstruct Pulmon Dis. 14:921-8, 2019
                                                                          2. Kunisaki SM et al: Current operative management of congenital lobar emphysema in children: a report from the Midwest Pediatric Surgery Consortium. J Pediatr Surg. 54(6):1138-42, 2019
                                                                          3. Oliver ER et al: Congenital lobar overinflation: a rare enigmatic lung lesion on prenatal ultrasound and magnetic resonance imaging. J Ultrasound Med. 38(5):1229-39, 2019
                                                                          4. Biyyam DR et al: Congenital lung abnormalities: embryologic features, prenatal diagnosis, and postnatal radiologic-pathologic correlation. Radiographics. 30(6):1721-38, 2010
                                                                          5. Adzick NS: Management of fetal lung lesions. Clin Perinatol. 36(2):363-76, x, 2009
                                                                          6. Liu YP et al: Congenital lobar emphysema: appearance on fetal MRI. Pediatr Radiol. 38(11):1264, 2008
                                                                          7. Babu R et al: Prenatal sonographic features of congenital lobar emphysema. Fetal Diagn Ther. 16(4):200-2, 2001
                                                                          8. Winters WD et al: Congenital masses of the lung: prenatal and postnatal imaging evaluation. J Thorac Imaging. 16(4):196-206, 2001
                                                                          9. Olutoye OO et al: Prenatal diagnosis and management of congenital lobar emphysema. J Pediatr Surg. 35(5):792-5, 2000