History of ascending aortic dilatation. CHEST:MEDIASTINUM AND HILA: The ascending aorta measures 4.2 x 4.1 cm (series 601/13) compared to approximately 40 x 40 mm previously. No dissection is evident and the aorta shows a normal appearing gradual transition.The aortic arch and descending thoracic aorta are unremarkable.The descending thoracic aorta demonstrates minimal mural nodularity compatible with atherosclerotic disease, with normal caliber and without other abnormalities.The main pulmonary artery measures at the upper limits of normal, measuring 30 mm in diameter.CHEST WALL: No significant abnormality noted
Ascending thoracic aorta measures 4.2 x 4.1 cm in maximal cross-section, not significantly changed from 2010. 