Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Comparison is made to ___ . The heart is normal in size . The mediastinal and hilar contours are unremarkable . The pulmonary vasculature is normal . In the right lower lobe , there are some patchy opacities that are less prominent than on the prior study . The left lung is clear . There are no pleural effusions .
    OUTPUT:
    
Patchy opacities in the right lower lobe concerning for pneumonia . This is improved compared to ___ .