Abstract
A 73-year-old female donated cadaver had an unusual origin of the right subclavian artery (RSA), which is usually known as ‘Arteria lusoria’ (AL) or “Aberrant Right Subclavian Artery” (ARSA). This artery originated as the fourth and most extreme left branch from the arch of the aorta (AOA), distal to the origin of the left subclavian artery (LSA), and traversed obliquely upwards, towards the right side posterior to the oesophagus, heading for the thoracic inlet. The brachiocephalic trunk (BCT) was absent. The right common carotid (RCCA), left common carotid (LCCA), LSA and ARSA were four branches that originated from the aortic arch and ran from right to left. The course and distribution of these branches were normal. On opening the right atrium, a patent foramen ovale (PFO) was observed in the upper part of the interatrial septum. As far as we know, this is the first cadaveric case report of arteria lusoria with the presence of an atrial septal defect in the form of a PFO. Early diagnosis of aortic arch abnormalities using diagnostic interventions is beneficial for identifying risk factors after invasive procedures.
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Acknowledgements
We would like to express our sincere gratitude to the cadaver's relatives for donating their relative's body for education and research. The outcomes of such research could potentially advance human knowledge, which would then improve patient care. We are sincerely grateful to these contributors and their families.
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Conceptualization: MC, PR. Data acquisition: MC, PR. Data analysis or interpretation: MC, PR, RM. Drafting of the manuscript: PR, RM. Critical revision of the manuscript: MC, RM. Approval of the final version of the manuscript: all authors.
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Chandrupatla, M., Raviteja, P. & Motwani, R. Arteria lusoria with patent foramen ovale: clinical and embryological significance with literature review. Surg Radiol Anat 45, 807–811 (2023). https://doi.org/10.1007/s00276-023-03170-3
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DOI: https://doi.org/10.1007/s00276-023-03170-3