Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single frontal portable view of the chest was obtained . The heart is moderately enlarged , similar to prior . There is calcification of the aortic knob . The pulmonary vasculature is indistinct , compatible with mild pulmonary edema . Small bilateral pleural effusions are present . No pneumothorax . Osseous structures are unremarkable . No radiopaque foreign body .
    OUTPUT:
    
Mild pulmonary edema with small bilateral pleural effusions .