Tabriz University of Medical Sciences Journal of Cardiovascular and Thoracic Research 2008-5117 3 4 2011 12 28 A Case of Aortic Aneurysm Hospitalized as Acute Coronary Syndrome 129 131 10.5681/jcvtr.2011.028 EN Aytekin Guven Talantbek Batyraliev Yuri Pya Journal Article 10.5681/jcvtr.2011.028 2011 11 04 Saccular type of thoracic aortic aneurysm is a rarely seen phenomenon. Here, we present a case of saccular-type aortic aneurysm admitted to coronary care unit with a diagnosis of acute coronary syndrome. A 63-year-old woman presented to our clinic with chest pain lasting for 2-3 hours. Because her chest pain persisted despite intensive medical treatment, she underwent coronary angiography. Coronary arteries appeared normal but a saccular type aneurysm of ascending aorta was detected on aortography. The patient underwent urgent surgery. The aneurysmal segment was resected and tube graft inserted. The patient was discharged without any postoperative complication.