Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The patient is apparently status post coronary artery bypass graft surgery , as well as bilateral total shoulder replacement surgeries . The heart is normal in size . There is moderate unfolding along the thoracic aorta . Central pulmonary arteries , particularly the right main , appear prominent . There is no pleural effusion or pneumothorax . The lungs appear clear . Bony demineralization and loss in height among mid thoracic vertebral bodies , as well as moderate degenerative changes , show no change .
    OUTPUT:
    
No evidence of acute disease .