Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Blunting of the right costophrenic angle suggests a small right pleural effusion . Overlying right base opacity may be due to atelectasis however , infectious process is not excluded . There is likely left base atelectasis . Interstitial appearing opacity at the right lung apex with upward retraction of the right hilum likely consistent with postradiation change , as seen on chest CT from ___ .
    OUTPUT:
    
New blunting of the right costophrenic angle raises concern for small right pleural effusion with overlying atelectasis . Right base consolidation is difficult to exclude . Likely left base atelectasis . Right upper hemi thorax post radiation change .