Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP portable upright radiograph demonstrates interval improvement in right pleural effusion , which is now small to moderate . Left lung parenchymal opacities are unchanged , and the right apex is well aerated . There is interval worsening of the left pleural effusion , which is now small . Heart size and hilar contours are unchanged .
    OUTPUT:
    
Interval improvement in large right pleural effusion , which is now small to moderate , with interval increase in left pleural fluid , which is now small .