Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal image of the chest demonstrates near - complete resolution of the previously seen right lung opacities . There are still some opacities remaining in the left lung . Overall , the lungs have increased in transparency . The size of the heart silhouette has decreased since last imaging . No pneumothorax is visualized on this exam .
    OUTPUT:
    
Resolved right lung opacity . Improving , but not yet normal , left lung opacity .