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 the right sided effusion . Some residual fluid is still noted in the right . The left lung is clear . There is no pneumothorax . Cardiomegaly is unchanged . The left sided pacemaker leads terminate in the right atrium and right ventricle , expected location .
    OUTPUT:
    
Interval improvement of right sided pleural effusion with no pneumothorax .