Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The patient is status post median sternotomy and CABG . The heart is moderately enlarged but stable in size from the prior exam . The cardiomediastinal and hilar contours are within normal limits . No pleural effusion or pneumothorax is seen . There is minimal bibasilar atelectasis . As before the patient is status post total shoulder arthroplasties .
    OUTPUT:
    
No acute cardiopulmonary process . Minimal bibasilar atelectasis .