Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Bilateral chest tubes project over the lower zones with interval improvement in bilateral pleural effusions . There are bilateral small apical pneumothoraces . No interval change in lungs bilaterally . Extensive sclerotic bony metastases at again identified . There is stable cardiomegaly .
    OUTPUT:
    
Interval improvement in bilateral pleural effusions status post chest tube placement . There is unfolding of the pigtail of the left - sided chest tube . By biapical tiny pneumothoraces are noted . Rest of the exam including cardiomegaly and diffuse sclerotic bony metastases remain unchanged .