Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest are reviewed . Compared to the prior study , there has been interval increase in the right - sided hydropneumothorax . The left lung is clear and there is no left sided pleural effusion . There is no vascular congestion or pneumothorax . The cardiac and mediastinal contours are normal . The bones and soft tissues are unremarkable .
    OUTPUT:
    
Interval increase in right - sided hydropneumothorax .