Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Compared to ___ , there is increased bilateral interstitial opacity , especially in the right lower lobe obscuring the right hemidiaphragm , possibly due to worsening pneumonia and less likely layering pleural effusion or atelectasis . Small pleural effusion on the left is also likely . The heart size is unchanged . Tracheostomy and support bones appear unchanged from prior .
    OUTPUT:
    
Worsening right lower lobe pneumonia .