Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The patient is status post sternotomy , coronary artery bypass surgery , and aortic valve replacement . The heart is normal in size . There is no pleural effusion or pneumothorax . The lungs appear clear . The bones are probably demineralized . Kyphosis is mildly exaggerated , as before , with several mild unchanged mid thoracic compression deformities that appear chronic .
    OUTPUT:
    
No evidence of acute cardiopulmonary disease .