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Aberrant Right Subclavian Artery
Harold Goerne, MD; Prabhakar Rajiah, MBBS, MD, FRCR, FSCMR
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KEY FACTS

  • Terminology

    • Imaging

      • Top Differential Diagnoses

        • Pathology

          • Clinical Issues

            TERMINOLOGY

            • Abbreviations

              • ARSA (aberrant right subclavian artery)
              • ALSA (aberrant left subclavian artery)
            • Synonyms

              • Lusoria artery (arteria lusoria)
              • Incomplete vascular ring
            • Definitions

              • Aberrant origin of right subclavian artery as last branch of left-sided aortic arch or proximal descending aorta
                • Normally RSA originates from brachiocephalic artery

            IMAGING

            • General Features

              • Radiographic Findings

                • CT Findings

                  • MR Findings

                    • Imaging Recommendations

                      DIFFERENTIAL DIAGNOSIS

                        PATHOLOGY

                        • General Features

                          • Staging, Grading, & Classification

                            CLINICAL ISSUES

                            • Presentation

                              • Demographics

                                • Natural History & Prognosis

                                  • Treatment

                                    Selected References

                                    1. Mazzaccaro D et al: Analysis of origin of the supra-aortic trunks from the aortic arch. J Vasc Surg. 67(2):399-408, 2018
                                    2. Hanneman K et al: Congenital variants and anomalies of the aortic arch. Radiographics. 37(1):32-51, 2017
                                    3. Polednak AP: Prevalence of the aberrant right subclavian artery reported in a published systematic review of cadaveric studies: the impact of an outlier. Clin Anat. 30(8):1024-8, 2017
                                    4. Allen D et al: Arteria lusoria: an anomalous finding during right transradial coronary intervention. Case Rep Cardiol. 2016:8079856, 2016
                                    5. Tanaka A et al: Kommerell's diverticulum in the current era: a comprehensive review. Gen Thorac Cardiovasc Surg. 63(5):245-59, 2015
                                    6. Etesami M et al: Computed tomography in the evaluation of vascular rings and slings. Insights Imaging. 5(4):507-21, 2014
                                    7. Mahmodlou R et al: Aberrant right subclavian artery: a life-threatening anomaly that should be considered during esophagectomy. J Surg Tech Case Rep. 6(2):61-3, 2014
                                    8. Roofthooft MT et al: Down syndrome and aberrant right subclavian artery. Eur J Pediatr. 167(9):1033-6, 2008
                                    9. Donnelly LF et al: Aberrant subclavian arteries: cross-sectional imaging findings in infants and children referred for evaluation of extrinsic airway compression. AJR 178:1269-74, 2002
                                    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

                                                • ARSA (aberrant right subclavian artery)
                                                • ALSA (aberrant left subclavian artery)
                                              • Synonyms

                                                • Lusoria artery (arteria lusoria)
                                                • Incomplete vascular ring
                                              • Definitions

                                                • Aberrant origin of right subclavian artery as last branch of left-sided aortic arch or proximal descending aorta
                                                  • Normally RSA originates from brachiocephalic artery

                                              IMAGING

                                              • General Features

                                                • Radiographic Findings

                                                  • CT Findings

                                                    • MR Findings

                                                      • Imaging Recommendations

                                                        DIFFERENTIAL DIAGNOSIS

                                                          PATHOLOGY

                                                          • General Features

                                                            • Staging, Grading, & Classification

                                                              CLINICAL ISSUES

                                                              • Presentation

                                                                • Demographics

                                                                  • Natural History & Prognosis

                                                                    • Treatment

                                                                      Selected References

                                                                      1. Mazzaccaro D et al: Analysis of origin of the supra-aortic trunks from the aortic arch. J Vasc Surg. 67(2):399-408, 2018
                                                                      2. Hanneman K et al: Congenital variants and anomalies of the aortic arch. Radiographics. 37(1):32-51, 2017
                                                                      3. Polednak AP: Prevalence of the aberrant right subclavian artery reported in a published systematic review of cadaveric studies: the impact of an outlier. Clin Anat. 30(8):1024-8, 2017
                                                                      4. Allen D et al: Arteria lusoria: an anomalous finding during right transradial coronary intervention. Case Rep Cardiol. 2016:8079856, 2016
                                                                      5. Tanaka A et al: Kommerell's diverticulum in the current era: a comprehensive review. Gen Thorac Cardiovasc Surg. 63(5):245-59, 2015
                                                                      6. Etesami M et al: Computed tomography in the evaluation of vascular rings and slings. Insights Imaging. 5(4):507-21, 2014
                                                                      7. Mahmodlou R et al: Aberrant right subclavian artery: a life-threatening anomaly that should be considered during esophagectomy. J Surg Tech Case Rep. 6(2):61-3, 2014
                                                                      8. Roofthooft MT et al: Down syndrome and aberrant right subclavian artery. Eur J Pediatr. 167(9):1033-6, 2008
                                                                      9. Donnelly LF et al: Aberrant subclavian arteries: cross-sectional imaging findings in infants and children referred for evaluation of extrinsic airway compression. AJR 178:1269-74, 2002