Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A right - sided chest tube is in - situ . There is a persistent moderate - sized right pleural effusion , not significantly changed when compared to the prior study . No pneumothorax seen . Right middle and right lower lobe atelectasis , superimposed infection can not be excluded . The left lung is grossly clear .
    OUTPUT:
    
No significant interval change when compared to the prior study .