Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: As compared to the previous radiograph , no relevant change is seen . Opacity at the right lung bases is minimally less extensive than on the previous image . The large opacity on the left as well as the PK discussed on the left are unchanged . Unchanged appearance of the cardiac silhouette , including a substantial left lower lobe atelectasis . No new parenchymal opacities . The right PICC line is unchanged .
    OUTPUT:
    
Minimal decrease in extent of the opacities on the right , otherwise no change .