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Tracheal Bronchus and Other Anomalous Bronchi
Melissa L. Rosado de Christenson, MD, FACR; Tomás Franquet, MD, PhD
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KEY FACTS

  • Terminology

    • Imaging

      • Top Differential Diagnoses

        • Clinical Issues

          • Diagnostic Checklist

            TERMINOLOGY

            • Synonyms

              • Congenital bronchial anomalies
              • Tracheobronchial branching anomalies
              • Variant tracheobronchial branching
              • Tracheal diverticulum: Tracheocele, paratracheal air cyst
              • Tracheal bronchus: Pig bronchus, bronchus suis
                • Displaced right upper lobe (RUL) tracheal bronchus; normal anatomic bronchial branching pattern in swine
            • Definitions

              • Tracheal diverticulum: Paratracheal blind-ending air-filled structure
              • Tracheal bronchus: Bronchus arising from trachea
              • Supernumerary bronchus: Coexists with normal branching bronchi
              • Displaced bronchus: Displacement of lobar or segmental bronchus to anomalous location

            IMAGING

            • General Features

              • Radiographic Findings

                • CT Findings

                  • Imaging Recommendations

                    DIFFERENTIAL DIAGNOSIS

                      PATHOLOGY

                      • General Features

                        CLINICAL ISSUES

                        • Presentation

                          • Demographics

                            • Natural History & Prognosis

                              • Treatment

                                DIAGNOSTIC CHECKLIST

                                • Consider

                                  • Image Interpretation Pearls

                                    • Reporting Tips

                                      Selected References

                                      1. Yaginuma H: Investigation of displaced bronchi using multidetector computed tomography: associated abnormalities of lung lobulations, pulmonary arteries and veins. Gen Thorac Cardiovasc Surg. 68(4):342-9, 2020
                                      2. Chaddha U et al: Congenital tracheobronchial branching anomalies. Ann Am Thorac Soc. 15(8):995-7, 2018
                                      3. Shepard JO et al: Imaging of the trachea. Ann Cardiothorac Surg. 7(2):197-209, 2018
                                      4. Wang T et al: Variations of right bronchial tree: a study with multi-detector CT. Surg Radiol Anat. 40(8):955-8, 2018
                                      5. Chassagnon G et al: Tracheobronchial branching abnormalities: lobe-based classification scheme. Radiographics. 36(2):358-73, 2016
                                      6. Wooten C et al: Variations of the tracheobronchial tree: anatomical and clinical significance. Clin Anat. 27(8):1223-33, 2014
                                      7. Kang EY: Large airway diseases. J Thorac Imaging. 26(4):249-62, 2011
                                      8. Suzuki M et al: Radioanatomical study of a true tracheal bronchus using multidetector computed tomography. Jpn J Radiol. 28(3):188-92, 2010
                                      9. Desir A et al: Congenital abnormalities of intrathoracic airways. Radiol Clin North Am. 47(2):203-25, 2009
                                      10. Kumagae Y et al: An adult case of bilateral true tracheal bronchi associated with hemoptysis. J Thorac Imaging. 21(4):293-5, 2006
                                      11. Ghaye B et al: Congenital bronchial abnormalities revisited. Radiographics. 21(1):105-19, 2001
                                      12. Ghaye B et al: Accessory cardiac bronchus: 3D CT demonstration in nine cases. Eur Radiol. 9(1):45-8, 1999
                                      13. Wu JW et al: Variant bronchial anatomy: CT appearance and classification. AJR Am J Roentgenol. 172(3):741-4, 1999
                                      Related Anatomy
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                                      Related Differential Diagnoses
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                                      References
                                      Tables

                                      Tables

                                      KEY FACTS

                                      • Terminology

                                        • Imaging

                                          • Top Differential Diagnoses

                                            • Clinical Issues

                                              • Diagnostic Checklist

                                                TERMINOLOGY

                                                • Synonyms

                                                  • Congenital bronchial anomalies
                                                  • Tracheobronchial branching anomalies
                                                  • Variant tracheobronchial branching
                                                  • Tracheal diverticulum: Tracheocele, paratracheal air cyst
                                                  • Tracheal bronchus: Pig bronchus, bronchus suis
                                                    • Displaced right upper lobe (RUL) tracheal bronchus; normal anatomic bronchial branching pattern in swine
                                                • Definitions

                                                  • Tracheal diverticulum: Paratracheal blind-ending air-filled structure
                                                  • Tracheal bronchus: Bronchus arising from trachea
                                                  • Supernumerary bronchus: Coexists with normal branching bronchi
                                                  • Displaced bronchus: Displacement of lobar or segmental bronchus to anomalous location

                                                IMAGING

                                                • General Features

                                                  • Radiographic Findings

                                                    • CT Findings

                                                      • Imaging Recommendations

                                                        DIFFERENTIAL DIAGNOSIS

                                                          PATHOLOGY

                                                          • General Features

                                                            CLINICAL ISSUES

                                                            • Presentation

                                                              • Demographics

                                                                • Natural History & Prognosis

                                                                  • Treatment

                                                                    DIAGNOSTIC CHECKLIST

                                                                    • Consider

                                                                      • Image Interpretation Pearls

                                                                        • Reporting Tips

                                                                          Selected References

                                                                          1. Yaginuma H: Investigation of displaced bronchi using multidetector computed tomography: associated abnormalities of lung lobulations, pulmonary arteries and veins. Gen Thorac Cardiovasc Surg. 68(4):342-9, 2020
                                                                          2. Chaddha U et al: Congenital tracheobronchial branching anomalies. Ann Am Thorac Soc. 15(8):995-7, 2018
                                                                          3. Shepard JO et al: Imaging of the trachea. Ann Cardiothorac Surg. 7(2):197-209, 2018
                                                                          4. Wang T et al: Variations of right bronchial tree: a study with multi-detector CT. Surg Radiol Anat. 40(8):955-8, 2018
                                                                          5. Chassagnon G et al: Tracheobronchial branching abnormalities: lobe-based classification scheme. Radiographics. 36(2):358-73, 2016
                                                                          6. Wooten C et al: Variations of the tracheobronchial tree: anatomical and clinical significance. Clin Anat. 27(8):1223-33, 2014
                                                                          7. Kang EY: Large airway diseases. J Thorac Imaging. 26(4):249-62, 2011
                                                                          8. Suzuki M et al: Radioanatomical study of a true tracheal bronchus using multidetector computed tomography. Jpn J Radiol. 28(3):188-92, 2010
                                                                          9. Desir A et al: Congenital abnormalities of intrathoracic airways. Radiol Clin North Am. 47(2):203-25, 2009
                                                                          10. Kumagae Y et al: An adult case of bilateral true tracheal bronchi associated with hemoptysis. J Thorac Imaging. 21(4):293-5, 2006
                                                                          11. Ghaye B et al: Congenital bronchial abnormalities revisited. Radiographics. 21(1):105-19, 2001
                                                                          12. Ghaye B et al: Accessory cardiac bronchus: 3D CT demonstration in nine cases. Eur Radiol. 9(1):45-8, 1999
                                                                          13. Wu JW et al: Variant bronchial anatomy: CT appearance and classification. AJR Am J Roentgenol. 172(3):741-4, 1999