Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: One AP view of the chest . The lungs appear hyperinflated . No focal consolidation . No pleural effusion or pneumothorax . The cardiomediastinal and hilar contours are stable . Old left rib fractures are again seen and unchanged . Mild linear scarring is again seen in the right lower lobe , unchanged .
    OUTPUT:
    
No acute cardiopulmonary process . Changes consistent with emphysema .