Innominate artery aneurysm with hemoptysis and airway compression in a patient with bovine aortic arch.

We present the case of a 63-year-old man with a bovine aortic arch variation, who presented episodes of mild hemoptysis secondary to a 4.5-cm (diameter) aneurysm of the innominate artery that compressed the trachea and obliterated the right subclavian artery. Surgery, performed through a median sternotomy, consisted of a bypass from the ascending aorta to both common carotid arteries using a Dacron graft, and exclusion of the aneurysm by ligature and direct thrombin injection. Computed tomography angiography at 30 days showed a patent bypass, successful aneurysm exclusion, and improvement of the tracheal compression. The patient is currently asymptomatic at 12 months following the procedure.