Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: As compared to prior chest radiograph from ___ there has been interval placement of a left pleural drain located at the left lung base . Right chest tube appears in unchanged position at the base of the right lung . There has been dramatic improvement of the left pleural effusion , some fluid still remains with adjacent atelectasis . Pleural effusion on the right has also improved . Atelectatic changes are noted at the right lung base . There is no definite pneumothorax .
    OUTPUT:
    
Interval placement of left pleural drain with improvement of pleural effusions bilaterally . No pneumothorax .