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Aberrant Left Pulmonary Artery
Carlos S. Restrepo, MD; Diane C. Strollo, MD, FACR
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KEY FACTS

  • Terminology

    • Imaging

      • Top Differential Diagnoses

        • Clinical Issues

          TERMINOLOGY

          • Abbreviations

            • Aberrant left pulmonary artery (ALPA)
            • VACTERL: Nonrandom association of vertebral defects, anal atresia, cardiac defects, tracheoesophageal fistula/atresia, renal, and limb anomalies
          • Synonyms

            • Anomalous pulmonary artery
            • Pulmonary artery sling (PAS)
          • Definitions

            • ALPA arises from posterior right pulmonary artery and courses between trachea and esophagus toward left hilum

          IMAGING

          • General Features

            • Radiographic Findings

              • Fluoroscopic Findings

                • CT Findings

                  • MR Findings

                    • Imaging Recommendations

                      DIFFERENTIAL DIAGNOSIS

                        PATHOLOGY

                        • General Features

                          CLINICAL ISSUES

                          • Presentation

                            • Demographics

                              • Treatment

                                DIAGNOSTIC CHECKLIST

                                • Consider

                                  • Image Interpretation Pearls

                                    Selected References

                                    1. Escalon JG et al: Congenital anomalies of the pulmonary arteries: an imaging overview. Br J Radiol. 92(1093):20180185, 2019
                                    2. Xie J et al: Evaluation of left pulmonary artery sling, associated cardiovascular anomalies, and surgical outcomes using cardiovascular computed tomography angiography. Sci Rep. 7:40042, 2017
                                    3. Solomon BD: VaCTERL/VATER association. Orphanet J Rare Dis. 6:56, 2011
                                    4. Fiore AC et al: Surgical treatment of pulmonary artery sling and tracheal stenosis. Ann Thorac Surg. 79(1):38-46; discussion 38-46, 2005
                                    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

                                            TERMINOLOGY

                                            • Abbreviations

                                              • Aberrant left pulmonary artery (ALPA)
                                              • VACTERL: Nonrandom association of vertebral defects, anal atresia, cardiac defects, tracheoesophageal fistula/atresia, renal, and limb anomalies
                                            • Synonyms

                                              • Anomalous pulmonary artery
                                              • Pulmonary artery sling (PAS)
                                            • Definitions

                                              • ALPA arises from posterior right pulmonary artery and courses between trachea and esophagus toward left hilum

                                            IMAGING

                                            • General Features

                                              • Radiographic Findings

                                                • Fluoroscopic Findings

                                                  • CT Findings

                                                    • MR Findings

                                                      • Imaging Recommendations

                                                        DIFFERENTIAL DIAGNOSIS

                                                          PATHOLOGY

                                                          • General Features

                                                            CLINICAL ISSUES

                                                            • Presentation

                                                              • Demographics

                                                                • Treatment

                                                                  DIAGNOSTIC CHECKLIST

                                                                  • Consider

                                                                    • Image Interpretation Pearls

                                                                      Selected References

                                                                      1. Escalon JG et al: Congenital anomalies of the pulmonary arteries: an imaging overview. Br J Radiol. 92(1093):20180185, 2019
                                                                      2. Xie J et al: Evaluation of left pulmonary artery sling, associated cardiovascular anomalies, and surgical outcomes using cardiovascular computed tomography angiography. Sci Rep. 7:40042, 2017
                                                                      3. Solomon BD: VaCTERL/VATER association. Orphanet J Rare Dis. 6:56, 2011
                                                                      4. Fiore AC et al: Surgical treatment of pulmonary artery sling and tracheal stenosis. Ann Thorac Surg. 79(1):38-46; discussion 38-46, 2005