Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The patient is status post median sternotomy and CABG . The heart size is borderline enlarged . The aorta is unfolded . There is mild pulmonary edema . Lung volumes are low . Streaky bibasilar airspace opacities likely reflect atelectasis . Small bilateral pleural effusions are noted . There is no pneumothorax . No acute osseous abnormalities are detected . Clips are seen within the right upper quadrant of the abdomen .
    OUTPUT:
    
Mild pulmonary edema and small bilateral pleural effusions . Patchy bibasilar airspace opacities likely reflect atelectasis .