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 small - to - moderate right pleural effusion . Left lung is clear . There is no pulmonary edema . Mild cardiomegaly is unchanged .
    OUTPUT:
    
Interval improvement of right pleural effusion with no evidence of pulmonary edema .