Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: As compared to prior chest radiograph from ___ , there has been significant improvement of right - sided pleural effusion . There is no pneumothorax . There is a small left pleural effusion . Cardiomediastinal contour is stable .
    OUTPUT:
    
1 . Significant improvement of right - sided pleural effusion with no pneumothorax . 2 . Small left pleural effusion .