Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are hyperinflated with severe emphysematous changes most pronounced in the upper lobes , unchanged . There is a chronic opacity within the lingula , likely reflective of atelectasis . The cardiac and mediastinal contours are unchanged . Atherosclerotic calcifications noted throughout the aorta . Pulmonary vasculature is not engorged . No new focal consolidation , pleural effusion or pneumothorax is demonstrated . Numerous clips are demonstrated within the upper abdomen . There are no acute osseous abnormalities .
    OUTPUT:
    
Severe emphysema . Chronic opacity in the lingula likely reflective of atelectasis .