Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A known moderate right pleural effusion appears increased from most recent prior and has a convex margin suggesting loculation . Underlying atelectasis appears stable . The remainder of the lungs are clear . There is possible trace left pleural effusion as well . No pneumothorax or pneumomediastinum is evident . Cardiomediastinal and hilar contours are within normal limits .
    OUTPUT:
    
Interval increase in right pleural effusion with possible new loculation