Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Compared to the prior exams there has been interval removal Swan - Ganz catheter and ET tube . The right - sided PICC line and small left pigtail chest tube are again visualized . There continues to be volume loss at the bases . However , the aeration in the right lung appears slightly improved There small left effusion that is similar in size , and decreased right effusion . The appearance to the mediastinum is similar .
    OUTPUT:
    
Slight improved appearance , particularly on the right