Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: As compared to the previous radiograph , there has been complete resolution of the parenchymal opacity in the perihilar area of the left lung . There are unchanged postoperative findings in the right lung with suture material and several parenchymal scars . The cardiac silhouette is borderline enlarged but unchanged . No pleural effusion or pneumothorax is seen .
    OUTPUT:
    
Complete resolution of parenchymal opacity in the perihilar area of the left lung . Right - sided changes are stable .