<unk>  <unk>  or<unk>  atrial dilation refers to enlargement of the<unk>  atrium (LA) of the heart, and is a form of cardiomegaly.
Left atrial enlargement
Right atrial enlargement
Atrial enlargement
Aortic unfolding
Overriding aorta
Mitral facies
Mitral annular calcification
Left ventricular hypertrophy