Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: As compared to the prior examination dated ___ , there has been an interval increase in size of the right pleural effusion , now moderate to severe in size . The right upper lung field and left lung are grossly unremarkable without focal consolidation , pneumothorax , or pulmonary edema . There is stable , mild cardiomegaly . Mediastinal contours are normal . The left - sided central venous line remains in an unchanged position , seen terminating in the lower SVC .
    OUTPUT:
    
Interval increase in the right pleural effusion , now occupying roughly half of the right hemi-thorax .