Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The patient is status post median sternotomy and CABG . Mild enlargement of the cardiac silhouette is re - demonstrated . The mediastinal contour is unremarkable . Prominence of interstitial markings bilaterally appears similar compared to the prior exam and is likely chronic . No overt pulmonary edema is present . There is minimal atelectasis in the lung bases but no focal consolidation . No pleural effusion or pneumothorax is seen . Multilevel degenerative changes are seen in the thoracic spine with anterior bridging osteophytes .
    OUTPUT:
    
Bibasilar atelectasis . Prominent interstitial markings bilaterally appear to be similar to the prior studies , suggestive of a chronic interstitial lung disease .