Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The patient is status post median sternotomy and CABG . The cardiac silhouette size is normal . Mediastinal and hilar contours are unchanged . There is mild interstitial pulmonary edema . Small to moderate pleural effusions appear similar compared to the prior exams . Bibasilar airspace opacities likely reflect compressive atelectasis . Scarring within the lung apices is re - demonstrated . No pneumothorax is present . No acute osseous abnormalities are demonstrated .
    OUTPUT:
    
Mild pulmonary edema and small to moderate size bilateral pleural effusions . Bibasilar airspace opacities likely reflecting atelectasis .