Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: No significant interval change since ___ . There is persistent moderate to large left - sided partially loculated pleural effusion , not significantly changed compared to ___ , though increased compared to ___ , since removal of the pigtail catheter . The right lung is well expanded and clear . Mediastinal contours , hila and cardiac silhouette are stable from ___ . No pneumothorax .
    OUTPUT:
    
No significant interval change since ___ . Persistent moderate to large left - sided partially loculated pleural effusion .