Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Patient is status post median sternotomy and CABG . Heart size is normal . Mediastinal and hilar contours are unchanged . There is no pulmonary edema . Lungs are hyperinflated without focal consolidation . No pleural effusion or pneumothorax is demonstrated . There are no acute osseous abnormalities . Mild widening of the right acromioclavicular joint appears unchanged .
    OUTPUT:
    
No acute cardiopulmonary abnormality .