Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Compared to the prior film , the Swan - Ganz catheter has been removed . It replaced with a sheath that overlies the proximal / mid SVC . Again seen is a right subclavian PICC line . The PICC line is now visible in the mediastinum . The tip overlies the upper right atrium . This could be retracted by approximately 3 cm to lie in the distal SVC near the SVC / RA junction . Otherwise , I doubt significant interval change . No pneumothorax is detected .
    OUTPUT:
    
Right subclavian PICC line tip overlies the upper right atrium and could be retracted by approximately 3 cm .