Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single portable upright chest radiograph demonstrates stable severe cardiomegaly with interval increase in perihilar opacifications consistent with increased pulmonary edema . Slightly more focal opacification projecting over the right mid lung may reflect superimposed infection . Small - to - moderate bilateral pleural effusions with adjacent atelectasis present . Slightly increased collapse of the right middle lobe compared to next preceding study .
    OUTPUT:
    
Cardiomegaly with increased pulmonary edema and bilateral small - to - moderate pleural effusions . Can not exclude additional superimposed infection , particularly in right mid lung . Recommend re-imaging after diuresis . Slight interval increase in collapse of right middle lobe .