Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are hypoinflated with crowding of vasculature . New retrocardiac opacity causing obscuration of the left hemidiaphragm is noted . Stable small bilateral pleural effusions . No pneumothorax . Top - normal heart size is accentuated due to low lung volumes . Mediastinal contour is unremarkable . Mild prominence of the right hilus is most likely due to patient rotation and superimposed atelectasis and scarring .
    OUTPUT:
    
1 . Increase in small retrocardiac opacity is worrisome for early pneumonia in the appropriate clinical setting . 2 . Stable small bilateral pleural effusions . 3 . Prominence of right hilus due to patient rotation , superimposed atelectasis and scarring .