Figure 5. Chest CT angiogram revealing well-defined anterior mediastinal soft tissue density mass lesion of about 84.9x67.2mm seen at aorto-pulmonary window with mass effect compression of the main pulmonary artery and Proximal ascending aorta( red arrows and cross).
After a multidisciplinary team meeting involving a cardiothoracic surgeon, anaesthesiologist, cardiologist, and the patient with her family, it was decided to proceed with open heart surgery.
During the surgery, an aneurysm in the aortic wall near the sinus of Valsalva was discovered (see figures 6 and 7).