Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is mild enlargement of the cardiac silhouette , increased from prior . Small bilateral pleural effusions have increased from the prior . There is new mild pulmonary edema . Bibasilar opacities likely reflect a combination of effusions and atelectasis ; although , underlying infection can not be excluded .
    OUTPUT:
    
Mild cardiomegaly , bilateral pleural effusions and pulmonary edema . Bibasilar opacities likely reflect a combination of effusion atelectasis ; although , underlying infection can not be excluded .