Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There has been interval placement of the right - sided chest tube with dramatic decrease in the right pleural effusion . There is still a right effusion layering posteriorly and volume loss in the right mid and upper lung . It is unclear how much of the right peritracheal and right hilar mass is due to volume loss in how much of it is due to tumor there is a small right apical pneumothorax . The left lung is relatively clear
    OUTPUT:
    
Interval decrease in right effusion