Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiac silhouette size is top normal . Mediastinal and hilar contours are normal . Lungs are hyperinflated with emphysematous changes again demonstrated . Lungs are otherwise clear without focal consolidation . No pleural effusion or pneumothorax is present . There is no pulmonary vascular engorgement . No acute osseous abnormality is visualized .
    OUTPUT:
    
No acute cardiopulmonary abnormality . Emphysema .