Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiac , mediastinal and hilar contours are normal . Lungs are hyperinflated with emphysematous changes again demonstrated . Pulmonary vasculature is not engorged . No focal consolidation , pleural effusion or pneumothorax is present . No acute osseous abnormality is visualized . There are mild degenerative changes noted in the thoracic spine .
    OUTPUT:
    
No acute cardiopulmonary abnormality . Emphysema .