Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Compared the prior study there has been an interval decrease in size in the right apical pneumothorax . This is difficult to visualize on the current study but again . Is likely loculated . Unchanged masslike opacities of the right upper lobe . No other interval change .
    OUTPUT:
    
Interval decrease in the right apical pneumothorax which may be loculated .