Normally, the right subclavian artery arises from the brachiocephalic trunk and courses anterior to the esophagus. In arteria lusoria, it originates as the last branch of the aortic arch and passes posterior to the esophagus, creating a retroesophageal path that may compress the esophagus and cause dysphagia lusoria. It is a rare congenital vascular anomaly occurring in approximately 0.5% to 2% of the population. We describe a 61-year-old man who developed dysphagia 2 days after percutaneous coronary intervention, with imaging revealing aberrant right subclavian artery (ARSA) consistent with dysphagia lusoria despite no procedural complications.
Irshad et al. (Wed,) studied this question.