Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is a small left pleural effusion with associated atelectasis . Subtle reticular opacities within the left lung base correspond with mild fibrotic changes seen on recent CT . No new confluent opacity is identified to suggest pneumonia . Right apical volume loss is consistent with known prior right upper lobectomy . There are numerous contiguous left - sided rib fractures , unchanged from prior . Chronic healed right - sided rib fractures are also noted .
    OUTPUT:
    
1 . Unchanged small left pleural effusion with associated atelectasis . 2 . Stable left basilar interstitial opacities consistent with mild fibrosis . 3 . Unchanged subacute left - sided rib fractures . No pneumothorax . Dr . ___ communicated the above results to Dr . ___ at approximately 2 :45 p .m . on ___ by telephone 2 minutes after discovery .