Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: In comparison to previous radiograph , diffuse lung opacities have somewhat decreased with some residual opacities predominently in the lower lobes . No pleural effusion or pneumothorax is present . Right upper lobe linear opacity is unchanged from prior . Stable mild cardiomegaly .
    OUTPUT:
    
Interval improvement in diffuse bilateral opacities . No new consolidation .