Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Bilateral chest drainage tubes in situ . Right - sided PICC line in situ with the tip at the cavoatrial junction . No pneumothorax . Interval decrease in size of the bibasal pleural effusions . Adjacent subsegmental atelectasis seen in the lower lung zones . Coarsened appearance of the bones .
    OUTPUT:
    
Interval improved as evidenced by decrease in the size of the bilateral pleural effusions .