Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are hyperinflated with marked emphysematous changes noted . Lungs are otherwise clear without focal consolidation . Chain sutures are noted in the left apex , and scarring is noted within both upper lobes . No pleural effusion or pneumothorax is seen . The cardiac and mediastinal silhouettes are unremarkable . Surgical clips are noted in the mid upper abdomen and persistent contrast is seen in the bilateral renal collecting systems compatible with recent CT examination .
    OUTPUT:
    
No acute cardiopulmonary process . Emphysema .