Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The loculated right pleural effusion with the procedural and lateral subpleural compartments have decreased , now mild . Adjacent atelectasis is again present in the right lung base . The left lung is clear and there is no significant left pleural effusion . Heart size and mediastinal contours are normal . IVC filter is noted .
    OUTPUT:
    
Interval improvement in bilateral pleural effusions , mild on the right , and imperceptible on the left .