Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is mild enlargement of the heart , stable compared to multiple prior exams dating back to at least ___ . The hilar and mediastinal contours are stable . There has been interval improvement of the right lower lobe opacity compared to the prior exam . There is a small right pleural effusion . No new consolidations are seen . There is no pneumothorax .
    OUTPUT:
    
Interval improvement of the right lower lobe pneumonia .