[A successful case of simultaneous operation of aortic arch aneurysm and left lung cancer]

We report a simultaneous operated case of a 73-year-old man with aortic arch aneurysm and squamous cell carcinoma of the lung. Via median sternotomy, aneurysmectomy and graft replacement was performed under hypothermic circulatory arrest and selective brain perfusion. After changing the position, left upper lobectomy with lymph node dissection was performed via left posterolateral thoracotomy. In spite of using cardiopulmonary bypass, hemostasis was easy, and there was no complication through intra-operative to post-operative course. The cases of simultaneous operation of thoracic aortic aneurysm and lung cancer are rare, and only 3 cases have been reported in Japan. Under careful selection of the patients, simultaneous operations can be performed safely.