Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart remains moderate to severely enlarged . Mediastinal contours are stable . Mild pulmonary edema appears similar compared to the prior exam . More focal opacification in the right upper lobe may reflect asymmetric pulmonary edema , though infection can not be completely excluded . Atelectatic changes are also seen in both lung bases . Small bilateral pleural effusions are noted . There is no pneumothorax . Left mid clavicular fracture is again seen .
    OUTPUT:
    
Persistent mild pulmonary edema and bibasilar atelectasis . More focal opacity in the right upper lobe may reflect asymmetric pulmonary edema though infection can not be excluded .