Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are hyperinflated compatible with known emphysema . No focal consolidation is identified . The cardiomediastinal silhouette and hilar contours are stable . There is mild scarring at the right lung apex . A left chest tube terminates at the apex without residual pneumothorax . Osseous structures are grossly intact .
    OUTPUT:
    
No pneumothorax . Hyperinflated lungs compatible with emphysema .