Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are hyperinflated with coarse interstitial markings , likely representing COPD . There is blunting of the bilateral costophrenic angles likely from small bilateral pleural effusions . A retrocardiac opacity is likely atelectasis . There is no pulmonary edema or pneumothorax . The mediastinal contours are normal . The heart is massively enlarged , and unchanged . Clips in the left axilla are noted .
    OUTPUT:
    
1 . Chronic changes of COPD . 2 . Bilateral small pleural effusions . 3 . Severe stable cardiomegaly .