Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are clear . There is no evidence of pneumonia , pneumothorax , or pleural effusion . Cardiac silhouette is normal in size . Pacemaker is in place . The patient is status post median sternotomy with broken superior most cerclage wire . Extensive mediastinal clips from the prior CABG .
    OUTPUT:
    
No acute cardiopulmonary process .