Right aortic arch with left lung cancer: focusing on left recurrent laryngeal nerve

We report a case of a 64-year-old Japanese man with an anomalous right aortic arch who had left lung cancer. We performed lobectomy and mediastinal lymphadenectomy, paying attention to the pathway of left recurrent laryngeal nerve. The left recurrent laryngeal nerve hooked around from the left dorsal to the right ventral part of the left ductus arteriosus, which connected the left pulmonary artery with the aortic diverticulum.