Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: As compared to prior chest radiograph from ___ , there has been interval improvement of right pleural effusion . Residual fluid is still noted along the right costophrenic angle . There is no pneumothorax . Left lung is unchanged and clear . Heart size is within normal limits .
    OUTPUT:
    
Interval improvement of right pleural effusion with no pneumothorax .