Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There has been slight interval decrease in the size of a small left pleural effusion . A left pleural catheter remains in place . No new consolidation or pneumothorax is present . Mediastinal contour remains widened likely due to a prominent mediastinal fat pad . Aortic arch calcifications are noted . A right - sided internal jugular Port - A - Cath tip terminates in the right atrium .
    OUTPUT:
    
Slight interval decrease in size of small left pleural effusion since ___ .