Right Aortic Arch and Aberrant Left Subclavian Artery Presenting with Dysphagia Lusoria: A Case Report and Review of the Literature

J Arudchelvam , MN Jazeel
Arudchelvam, J. and Jazeel, M.N. (2024) ‘Right Aortic Arch and Aberrant Left Subclavian Artery Presenting with Dysphagia Lusoria: A Case Report and Review of the Literature’, Sri Lanka Journal of Medicine, 33(4), p. 40-44. Available at: https://doi.org/10.4038/sljm.v33i4.547
Publication year: 2025
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ABSTRACT

Right aortic arch (RAA) occurs in 0.05% to 0.1% of the individuals. Dysphagia lusoria is the difficulty in

swallowing due to the compression of the oesophagus due to aberrant vessels. We report a case of aberrant

left subclavian artery (ALSA) arising from the RAA resulting in dysphagia in a 59-year-old male. However, he

was able to take meals with minimal difficulties. A computerised tomographic scan (CT) of the chest revealed

a RAA and an ALSA running posterior to the oesophagus compressing it. Considering that the patient can take

meals and maintain his weight, he was managed conservatively.

Keywords: Aberrant left subclavian artery, development of the aorta, right aortic arch