Abstract
A 76-year-old woman with a 2-week history of dyspnea on exertion was admitted to our hospital. A computed tomography scan showed a 70-mm diameter aortic arch aneurysm containing a large thrombus that was compressing the pulmonary artery. Echocardiography showed severe pulmonary stenosis and no shunt flow. Operative findings revealed an aneurysmal thrombus protruding into the lumen of the pulmonary artery through a foramen. A ductus arteriosus aneurysm was diagnosed. After the thrombus removal, arch replacement and ductus closure with a prosthetic patch were performed. Histological examination showed that the thrombus had no vascular components. The patient’s symptoms were relieved, and she was discharged.
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