The “Bovine arch” (BA) defines anatomical variants in which the left common carotid and innominate artery share a common origin. While the definition and terminology are debated, there is no consensus regarding the anatomy as a marker of pathology or normal variant. The reported association of the BA with thoracic aortopathy and a rapidly expanding aorta may carry clinical significance. If consistently validated, this could potentially alter management guidelines regarding the timing of repair and surveillance of thoracic aortic aneurysms in BA patients. The study sought to identify if the BA was associated with proximal thoracic aortopathy.
