Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest provided . Midline sternotomy wires again noted . The aorta is prominent in this patient with known dilation of the thoracic aorta better assessed on prior CT . Heart size is normal . Lungs are clear . There is no focal consolidation , effusion , or pneumothorax . Imaged osseous structures are intact . No free air below the right hemidiaphragm is seen .
    OUTPUT:
    
Prominent aorta consistent with known aneurysmal dilation seen on prior CT . No acute process .