Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A right internal jugular central venous line has been placed with the tip terminating at approximately the cavoatrial junction . The course of the line is unremarkable . There is no pneumothorax or pleural effusion . The appearance of the chest is otherwise unchanged from the most recent prior study with mild enlargement of the cardiac silhouette and tortuosity of the thoracic aorta .
    OUTPUT:
    
Right IJ central venous catheter ending at the cavoatrial junction .