Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest provided . Volumes are low . Lower lung consolidations remain concerning for pneumonia . Upper lungs appear improved in overall aeration compared with the prior CT chest from 4 days ago . Otherwise no change .
    OUTPUT:
    
1 . Persistent lower lung opacities remain concerning for pneumonia . 2 . Interval improvement in the upper lung aeration compared with recent CT .