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Congenital Lobar Overinflation
Hank Baskin, MD; A. Carlson Merrow, Jr., MD, FAAP
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KEY FACTS

  • Terminology

    • Imaging

      • Top Differential Diagnoses

        • Pathology

          • Clinical Issues

            TERMINOLOGY

            • Abbreviations

              • Congenital lobar overinflation (CLO)
            • Synonyms

              • Congenital lobar emphysema, congenital lobar hyperinflation, infantile lobar emphysema
            • Definitions

              • Congenital abnormality of lower airways that results in progressive overexpansion of pulmonary lobe
              • Considered final, common pathway of various disruptions of bronchopulmonary development
                • 50% idiopathic
                • 25% due to intrinsic cartilaginous abnormality
                • 25% due to extrinsic compression

            IMAGING

            • General Features

              • Radiographic Findings

                • CT Findings

                  • MR Findings

                    • Ultrasonographic Findings

                      • Nuclear Medicine Findings

                        • Imaging Recommendations

                          DIFFERENTIAL DIAGNOSIS

                            PATHOLOGY

                            • General Features

                              • Staging, Grading, & Classification

                                • Gross Pathologic & Surgical Features

                                  • Microscopic Features

                                    CLINICAL ISSUES

                                    • Presentation

                                      • Demographics

                                        • Natural History & Prognosis

                                          • Treatment

                                            Selected References

                                            1. Krivchenya DU et al: Congenital emphysema in children: segmental lung resection as an alternative to lobectomy. J Pediatr Surg. 48(2):309-14, 2013
                                            2. Pacharn P et al: Congenital lung lesions: prenatal MRI and postnatal findings. Pediatr Radiol. 43(9):1136-43, 2013
                                            3. Chen IC et al: Usefulness of combination of pulmonary ventilation and perfusion scintigraphy on the diagnosis of children with unilateral hyperlucent lung. Nucl Med Commun. 32(11):1052-9, 2011
                                            4. Biyyam DR et al: Congenital lung abnormalities: embryologic features, prenatal diagnosis, and postnatal radiologic-pathologic correlation. Radiographics. 30(6):1721-38, 2010
                                            5. Lee EY et al: Multidetector CT evaluation of congenital lung anomalies. Radiology. 247(3):632-48, 2008
                                            6. Ulku R et al: Congenital lobar emphysema: differential diagnosis and therapeutic approach. Pediatr Int. 50(5):658-61, 2008
                                            7. Berrocal T et al: Congenital anomalies of the tracheobronchial tree, lung, and mediastinum: embryology, radiology, and pathology. Radiographics. 24(1):e17, 2004
                                            8. Daltro P et al: CT of congenital lung lesions in pediatric patients. AJR Am J Roentgenol. 183(5):1497-506, 2004
                                            9. Ozçelik U et al: Congenital lobar emphysema: evaluation and long-term follow-up of thirty cases at a single center. Pediatr Pulmonol. 35(5):384-91, 2003
                                            10. Tander B et al: Congenital lobar emphysema: a clinicopathologic evaluation of 14 cases. Eur J Pediatr Surg. 13(2):108-11, 2003
                                            11. Donnelly LF et al: Localized lucent chest lesions in neonates. AJR. 212:837-40, 1999
                                            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

                                                      TERMINOLOGY

                                                      • Abbreviations

                                                        • Congenital lobar overinflation (CLO)
                                                      • Synonyms

                                                        • Congenital lobar emphysema, congenital lobar hyperinflation, infantile lobar emphysema
                                                      • Definitions

                                                        • Congenital abnormality of lower airways that results in progressive overexpansion of pulmonary lobe
                                                        • Considered final, common pathway of various disruptions of bronchopulmonary development
                                                          • 50% idiopathic
                                                          • 25% due to intrinsic cartilaginous abnormality
                                                          • 25% due to extrinsic compression

                                                      IMAGING

                                                      • General Features

                                                        • Radiographic Findings

                                                          • CT Findings

                                                            • MR Findings

                                                              • Ultrasonographic Findings

                                                                • Nuclear Medicine Findings

                                                                  • Imaging Recommendations

                                                                    DIFFERENTIAL DIAGNOSIS

                                                                      PATHOLOGY

                                                                      • General Features

                                                                        • Staging, Grading, & Classification

                                                                          • Gross Pathologic & Surgical Features

                                                                            • Microscopic Features

                                                                              CLINICAL ISSUES

                                                                              • Presentation

                                                                                • Demographics

                                                                                  • Natural History & Prognosis

                                                                                    • Treatment

                                                                                      Selected References

                                                                                      1. Krivchenya DU et al: Congenital emphysema in children: segmental lung resection as an alternative to lobectomy. J Pediatr Surg. 48(2):309-14, 2013
                                                                                      2. Pacharn P et al: Congenital lung lesions: prenatal MRI and postnatal findings. Pediatr Radiol. 43(9):1136-43, 2013
                                                                                      3. Chen IC et al: Usefulness of combination of pulmonary ventilation and perfusion scintigraphy on the diagnosis of children with unilateral hyperlucent lung. Nucl Med Commun. 32(11):1052-9, 2011
                                                                                      4. Biyyam DR et al: Congenital lung abnormalities: embryologic features, prenatal diagnosis, and postnatal radiologic-pathologic correlation. Radiographics. 30(6):1721-38, 2010
                                                                                      5. Lee EY et al: Multidetector CT evaluation of congenital lung anomalies. Radiology. 247(3):632-48, 2008
                                                                                      6. Ulku R et al: Congenital lobar emphysema: differential diagnosis and therapeutic approach. Pediatr Int. 50(5):658-61, 2008
                                                                                      7. Berrocal T et al: Congenital anomalies of the tracheobronchial tree, lung, and mediastinum: embryology, radiology, and pathology. Radiographics. 24(1):e17, 2004
                                                                                      8. Daltro P et al: CT of congenital lung lesions in pediatric patients. AJR Am J Roentgenol. 183(5):1497-506, 2004
                                                                                      9. Ozçelik U et al: Congenital lobar emphysema: evaluation and long-term follow-up of thirty cases at a single center. Pediatr Pulmonol. 35(5):384-91, 2003
                                                                                      10. Tander B et al: Congenital lobar emphysema: a clinicopathologic evaluation of 14 cases. Eur J Pediatr Surg. 13(2):108-11, 2003
                                                                                      11. Donnelly LF et al: Localized lucent chest lesions in neonates. AJR. 212:837-40, 1999