Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are moderately well expanded . Extensive calcified and noncalcified pleural plaques are unchanged from prior exam and are suggestive of prior asbestos exposure . There is an unchanged opacity in the right lung base , which may represent scarring related to the pleural plaques or possibly interstitial disease . The lungs are otherwise clear . There is no pleural effusion or pneumothorax . The cardiomediastinal silhouette is unremarkable .
    OUTPUT:
    
1 . No new opacity to suggest pneumonia . Comparison with OSH radiographs demonstrating pneumonia could be helpful for further assessment . 2 . Unchanged extensive calcified and noncalcified pleural plaques , suggestive of prior asbestos exposure . 3 . Unchanged opacity in the periphery of the right lung base , which may represent localized scarring related to adjacent pleural plaques or possibly related to asbestosis / interstitial disease .