Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart size remains moderately enlarged . The aortic knob is calcified . There is perihilar haziness and vascular indistinctness compatible with mild pulmonary edema . Additionally , a moderate left pleural effusion has increased from the prior study , and a small right pleural effusion appears relatively unchanged . Bibasilar airspace opacities may reflect compressive atelectasis , though infection , particularly in the left lower lobe can not be excluded . No pneumothorax is present . No acute osseous abnormalities are visualized .
    OUTPUT:
    
Mild pulmonary edema with increased moderate - sized left pleural effusion , and similar - sized right pleural effusion . Bibasilar airspace opacities may reflect compressive atelectasis , though infection can not be excluded .