Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Right IJ central line tip in the right atrium , stable . Shallow inspiration accentuates heart size , pulmonary vascularity . Bilateral lower lung opacities , more prominent some represent linear atelectasis . Pneumonitis can not be excluded , particularly in the lung bases . Prominent bowel loops in the upper abdomen .
    OUTPUT:
    
Increased lower lung opacities , largely atelectasis . Pneumonitis can not be excluded . Prominent bowel loops in the upper abdomen .