Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart is mildly enlarged . The patient is status post median sternotomy and CABG . There is mild pulmonary vascular congestion , worse when compared to the prior exam . There are likely trace bilateral pleural effusions . No pneumothorax is seen . Mild streaky opacities in the lung bases likely reflect atelectasis . There is no acute osseous abnormality .
    OUTPUT:
    
Mild pulmonary edema and small bilateral pleural effusions . Mild bibasilar atelectasis .