In 2004, two patients were operated on due to innominate artery aneurysms in the Department of General and Thoracic Surgery.The first patient was a 53 year old man admitted to the hospital with suspicion of lung neoplasm, haemoptysis and dyspnoea. AngioCT revealed a ruptured aneurysm of the innominate artery. An urgent endovascular procedure was performed with stentgraft implantation. There were no complications during the procedure and recovery. He was discharged in good condition on the twelfth postoperative day. At the three month follow-up visit, he had no complaints.The second patient was a 73 year old man who had been followed for two years because of a slowly growing aneurysm of the innominate artery. Elective operation was performed with stentgraft implantation. He developed arm ischemia during first postoperative day due to subclavian steal syndrome. After thoracic pharmacological sympathectomy, the problem was solved. At the six month follow-up visit, he was asymptomatic.