Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There has been interval increase in the right - sided moderate pleural effusion compared to the most recent exam . There is also evidence of comensatory right basilar atelectasis . The left lung is clear . There is no pneumothorax . There is mild cardiomegaly , stable since at least ___ . The hilar and mediastinal contours are otherwise normal .
    OUTPUT:
    
Interval increase in the right moderate pleural effusion .