Axial contrast-enhanced chest computed tomography image. The diameter of the aortic pseudoaneurysm (PsA) was 33.75 mm as indicated by the green line. RA: right atrium, Asc Ao: ascending aorta, PsA: pseudoaneurysm, PT: pulmonary trunk, LPA: left pulmonary artery, Desc Ao: descending aorta.