Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are well inflated and clear . The cardiomediastinal silhouette and hilar contours are stable . There is no pleural effusion or pneumothorax . Patient is status post sternotomy and coronary artery bypass graft surgery . A 3 lead AICD device appears unchanged .
    OUTPUT:
    
No evidence of acute cardiopulmonary process .