Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were obtained . The heart is moderately enlarged , similar to prior . There is calcification of the aortic knob . A right lung opacity silhouettes the right heart border . Opacity is also seen at the left lung base . There are new bilateral small pleural effusions . Osseous structures are unremarkable . No radiopaque foreign body .
    OUTPUT:
    
Bilateral parenchymal opacities , most prominent at right middle lobe , with new bilateral pleural effusions , compatible with edema or multifocal infection .