Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Three portable chest radiographs were provided demonstrating the leftsided central line placement in different configurations , presumably pre and post power flush . Initial radiograph demonstrates positioning of central line in the azygos vein . Final image demonstrates left - sided central venous catheter terminating at the cavoatrial junction . In addition there is a large fragmented leftsided venous catheter extending from the subclavian veins to the cavoatrial junction related to prior unsuccessful retrieval , unchanged in position compared to ___ . No pneumothorax or pleural effusion evident . Stable linear opacifications are noted within bilateral lung bases likely representing combination of postsurgical scarring and atelectasis . No new pulmonary opacifications evident .
    OUTPUT:
    
Successful repositioning of a left - sided central venous catheter with tip at cavoatrial junction . No migration of remnant left central venous catheter fragment spanning the subclavian vein to cavoatrial junction .