Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The right superior mediastinum at the expected area of the ascending aorta appears widened , demonstrating an outwardly convex bump compared to preoperative imaging . ETT in situ at the level of the medial clavicles . Swan - Ganz catheter position unchanged . Feeding tube in the stomach . Left - sided PICC line in situ with the tip at the cavoatrial junction . No new areas of airspace opacification . No pleural effusions . No pneumothoraces .
    OUTPUT:
    
The right superior mediastinum appears widened with a prominent bump . Swan - Ganz catheter in the appropriate position .