A 52-year-old man was admitted to our hospital for “CT-diagnosed thoracic-abdominal aortic aneurysm”. One week ago, the patient had repeated dry coughs and went to the local hospital for treatment. A chest radiograph revealed a huge mass in the left thoracic cavity. A further chest CT examination revealed a thoracic-abdominal aortic aneurysm and was transferred to our hospital for surgical treatment.The patient is almost healthy, with no fever, no severe chest and abdomen pain, no dyspnea, no dysphagia or other clinical symptoms. Ten years ago, the patient underwent “ascending aorta and total aortic arch replacement surgery” in another cardiovascular hospital due to aortic dissection involving the ascending aorta and aortic arch (Debakey I).The patient’s thoracic-abdominal aortic aneurysm is huge and has a high risk of rupture. Recently, the patient has undergone thoracic-abdominal aortic replacement surgery and is recovering well.