"a prominent ascending aorta in a young patient, particularly when combined with signs of left ventricular hypertrophy, should raise the possibility of congenital aortic stenosis with post-stenotic dilatation 5,6"
"Stanford type A aortic dissection"
"the right superior mediastinal border is normally formed by the superior vena cava; the ascending aorta contributes to this border only when it is ectatic or dilated, typically in older patients 1,4,6"