Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Loculated hydropneumothoraces are present in the left hemithorax anteromedially , and are overall probably not appreciably changed compared to the prior study allowing for positional differences . The patient is status post left upper lobe resection with expected post-operative volume loss . Post-operative small left pleural effusion is similar to the prior study , and a very small right pleural effusion is also unchanged .
    OUTPUT:
    
Persistent loculated left hydropneumothoraces status post left upper lobe resection .