Abstract
Penetrating injuries of isolated innominate artery are very rare. The main causes of such injuries include blunt, penetrating, blast or iatrogenic trauma. In this article, we report a 55-year-old male case with a staple gun injury from the sternum. Helical computed tomography angiography showed an innominate artery pseudoaneurysm and the patient underwent immediate surgery. The patient was successfully treated and discharged in the sixth postoperative day.