Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Increased right - sided pleural effusion , now Small - moderate . Inferior expansion of right apical opacity likely representing a localized effusion . A superimposed infection can not be excluded and should be considered in the appropriate clinical context . Left lung is clear . Cardiomediastinal contours are unchanged . No pneumothorax .
    OUTPUT:
    
1 . Small - moderate right pleural effusion . 2 . Inferior expansion of known right apical opacity .