Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A right internal jugular catheter terminates at the superior cavoatrial junction . Mild to moderate interstitial edema is minimally improved from the prior examination . There is no evidence of pneumothorax . No other significant change from the prior examination .
    OUTPUT:
    
Right internal jugular catheter terminates at the superior cavoatrial junction . Mild interstitial edema is minimally improved .