Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The left - sided pleural effusion is slightly smaller compared to ___ . Right lung is free of consolidations , pleural effusion or pneumothorax . The left Port - A - Cath terminates in the distal SVC . A left chest tube is unchanged in position . Minimal subcutaneous emphysema adjacent to the left lateral chest wall , unchanged . Destruction of entire right clavicle , unchanged since ___ .
    OUTPUT:
    
Interval decrease in size of left pleural effusion .