Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Right hemodialysis catheter ends in the right atrium . Left internal jugular central venous line ends at the brachiocephalic junction . An enteric tube ends off the imaged portion of the screen . There are diffuse bilateral pulmonary opacities which have slightly progressed . Cardiac silhouette is not well assessed . No evidence of pneumothorax .
    OUTPUT:
    
Slight increase in bilateral parenchymal opacities may represent edema ; however , underlying pneumonia is not ruled out .