Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There has been interval improvement of the left pleural effusion . The cardiac silhouette is unchanged , and no signs of pulmonary congestion are noted . Left - sided central line is unchanged in position .
    OUTPUT:
    
Interval improvement of left pleural effusion , and no change in cardiac silhouette . No signs of pulmonary congestion are noted .