Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Compared to the prior study , there is a new right internal jugular central venous line , the tip of which terminates at the cavoatrial junction . There is no evidence of pneumothorax . The lungs are clear but underinflated , accentuating the cardiomediastinal contour . No pleural effusion .
    OUTPUT:
    
Satisfactory position of right internal jugular central venous line , with the tip at the superior cavoatrial junction . No pneumothorax .