Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Compared to the prior radiograph from ___ , there is increasing opacification of the right upper lobe , and improvement in previously seen opacity in the left upper lobe . Additionally , there is new blunting of the right hemidiaphragm , which likely indicates a small right pleural effusion . Small left pleural effusion is also noted .
    OUTPUT:
    
1 . Interval improvement in appearance of left upper lobe , with increase in opacification of the right lung , concerning for ongoing / worsening infection on the right . 2 . Small bilateral pleural effusions .