Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac silhouette size is normal . Mediastinal and hilar contours are unchanged , with evidence of prior left upper lobectomy and volume loss in the left lung . The lungs are hyperinflated with emphysematous changes again demonstrated . Focal patchy opacity in the right upper lobe was present on the prior CT from ___ , and may reflect persistent or residual pneumonia . Additional previously noted areas concerning for early adenocarcinoma on prior CT particularly within the right lower lobe are not well seen on the current radiograph . No new areas of new focal consolidation are present . There is no new pneumothorax or pleural effusion . No pulmonary edema is present .
    OUTPUT:
    
1 . Persistent patchy opacity in the right upper lobe , which was present on the prior CT , and may reflect persistent or residual pneumonia . 2 . Emphysema . 3 . Other areas of potential early adenocarcinoma within particularly the right lower lobe are better assessed on the previous CT .