Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are hyperexpanded . There is no focal consolidation , pleural effusion or pneumothorax . Heart size is normal . The patient is status post CABG . Mediastinal silhouette and hilar contours are stable . The aorta is heavily calcified with calcifications of the origins of the head and neck vessels .
    OUTPUT:
    
No pneumonia , edema , or effusion .