Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart is mildly enlarged . There is a mildly convex contour to the ascending aorta , suggesting tortuosity and perhaps ectasia . Slight elevation of the right hemidiaphragm is noted . The lungs are clear . There are no pleural effusions or pneumothorax .
    OUTPUT:
    
1 . Prominent contour of the ascending aorta , probably chronic , although CT could be considered to exclude acute aortic pathology in the setting of acute pain . More commonly , however , findings such as this would correspond to a chronic abnormality associated potentially with hypertension . 2 . Mild cardiomegaly .