Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart size is normal . The mediastinal and hilar contours are within normal limits . Lungs are hyperinflated with flattening of the diaphragms compatible with emphysema , as seen on the prior chest CT . Bibasilar streaky opacities likely are reflective of atelectasis . Faint ill - defined micronodular pattern is seen diffusely , and may relate to a smoking related chronic interstitial lung disease as noted on the prior chest CT . No mass or focal consolidation is demonstrated . No pleural effusion or pneumothorax is present . There are no acute osseous abnormalities .
    OUTPUT:
    
1 . Mild bibasilar atelectasis . 2 . Emphysema . 3 . Diffuse fine micronodular pattern , better assessed on the prior chest CT , and suggestive of a smoking related interstitial lung disease .