Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Patient is status post median sternotomy and CABG . Moderate enlargement of the cardiac silhouette is re - demonstrated . The mediastinal contour is unchanged with atherosclerotic calcifications and tortuosity of the aorta again noted . There is mild interstitial pulmonary edema , worse in the interval with increased size of small bilateral pleural effusions . Patchy opacities at the lung bases likely reflect areas of compressive atelectasis . No pneumothorax is identified . There are moderate multilevel degenerative changes in the thoracic spine .
    OUTPUT:
    
Mild interstitial pulmonary edema with small bilateral pleural effusions and bibasilar atelectasis .