Aortic arch aneurysm associated with arch vessel anomalies: truncus bicaroticus and retroesophageal right subclavian artery.

P>An atherosclerotic aortic arch aneurysm associated with a common origin for both carotid arteries is a rare condition. An aberrant right subclavian artery is just as rare, especially with a retroesophageal course. A combination of these two conditions, we believe, has never been reported. (J Card Surg 2009;24:476-479).