Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Right chest port and pacer lead are unchanged . There has been interval placement of right sided pigtail catheter at the right mid lung . Bilateral pleural effusions have decreased since CT dated ___ . Cardiomediastinal silhouette is unchanged .
    OUTPUT:
    
Small residual right pleural effusion , status post drainage catheter placement .