Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is normal . The mediastinal and hilar contours are normal . The pulmonary vasculature is normal . The lungs are hyperinflated suggesting emphysema . No pleural effusion or pneumothorax is seen .
    OUTPUT:
    
Hyperinflated lungs suggesting emphysema . No acute cardiopulmonary abnormality .