Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were obtained . Mild cardiomegaly is new since ___ . There is calcification of the aortic knob . Increased interstitial lung markings are compatible with mild pulmonary edema . Patchy opacities at the lung bases may represent atelectasis , but infection can not be excluded . Minimal costophrenic blunting on lateral view suggests small bilateral pleural effusions . There is no pneumothorax . Osseous structures are unremarkable . No radiopaque foreign bodies are seen .
    OUTPUT:
    
1 . Patchy bibasilar opacities may represent atelectasis but can not exclude infection . 2 . New mild cardiomegaly with mild pulmonary edema and small bilateral pleural effusion .