Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: ET tube is 3 .4 cm above the carina . Right IJ Swan - Ganz catheter tip is pointing upwards towards the pulmonary outflow tracts . There is a large right effusion layering posteriorly . There is a smaller left effusion . The pulmonary vasculature is slightly ill - defined and there is vascular plethora most marked on the right . there continues to be retrocardiac opacity consistent volume loss in / infiltrate . There is a left lower chest tube .
    OUTPUT:
    
Compared to the prior study effusion on the left is improved and the effusion on the right is ___ .