Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There has been significant interval improvement of the large right pleural effusion with residual right basilar atelectasis . There is mild stable left basilar atelectasis . There is no evidence of a pneumothorax . The cardiomediastinal contours are otherwise unremarkable .
    OUTPUT:
    
Interval improvement of the large right pleural effusion , stable small left pleural effusion , no evidence of a pneumothorax .