The retroesophageal right subclavian artery is an anatomical abnormality encountered by anatomists and pathologists and recently interventional cardiologists and thoracic surgeons have also come across this phenomenon. We report a case of a retroesophageal right subclavian artery arising from a normally located left aortic arch in a young male autopsied in the Department of Forensic Service of Warsaw Medical University. In addition to the aforementioned anomaly, the presence of a right non-recurrent inferior laryngeal nerve was noticed. The possible embryonic development of these branching patterns and their clinical significance is discussed.
We report a case of left sided aortic arch with three branches — a bi-carotid trunk, left subclavian, artery and right subclavian artery. The anomalous right subclavian artery presented a retroesophageal course. A right non-recurrent laryngeal nerve was noticed. The embryonic development of this branching pattern is discussed. (Folia Morphol 2010; 69, 3: 184–186)
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