Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Compared to the prior chest radiograph of ___ bilateral lower lobe opacities have improved . New opacities in the right middle lobe and lingula are identified . There is no pleural effusion or pneumothorax the cardiac and mediastinal contours are stable .
    OUTPUT:
    
1 . New opacities in the right middle lobe and lingula likely represent new areas of pneumonia . 2 . Interval improvement in bilateral lower lobe opacities since ___ .