Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral chest radiographs again demonstrate a left pigtail catheter within left upper hemithorax pleural space , now filled with fluid rather than air as on previous chest radiographs . This pleural space appears unchanged in size and configuration . No new pneumothorax is identified . There is no focal consolidation . Cardiomediastinal silhouette is normal .
    OUTPUT:
    
Unchanged size and configuration of the left upper hemithorax pleural space , which is now filled with fluid rather than air .