Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Again visualized are bilateral chest tubes with interval improvement in bilateral pleural effusions . The pigtail of the left - sided chest tube is unfolded as compared to the prior radiograph . There is no pneumothorax . Lungs are clear . There is cardiomegaly . Extensive sclerotic bony metastases remain unchanged .
    OUTPUT:
    
Interval improvement in bilateral pleural effusions status post drainage , the pigtail of the left - sided chest tube is unfolded as compared to the prior radiograph . Extensive sclerotic bony metastases throughout the bony thorax persist .