Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There has been interval increase in size of the moderate , multiloculated right pleural effusion . A smaller moderate - sized left pleural effusion is also again noted , but similar when compared to the prior study . Cardiac , mediastinal and hilar contours are unchanged . Atelectatic changes are noted in both lung bases . No pneumothorax is present . Bilateral nephroureteral stents are partially imaged within the upper abdomen .
    OUTPUT:
    
Interval increase in size of moderate , multiloculated right pleural effusion . Unchanged appearance of smaller , moderate - sized left pleural effusion .