Kommerell's diverticular rupture complicated by aberrant left subclavian artery and right aortic arch successfully treated surgically.

We report a rare case of a rupture in Kommerell's diverticulum in a 73-year-old woman with Edwards IIIB aberrant left subclavian artery (A-LSA) and right aortic arch. This case was further complicated by an inferior vena cava defect. We performed an emergency operation through a right posterolateral approach. The descending aorta was replaced and the Kommerell's diverticulum was excised, followed by A-LSA reconstruction, performed under deep hypothermia with selective cerebral perfusion. We believe the prognosis was excellent.