Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Right internal jugular central venous line terminates at the superior cavoatrial junction . There is no evidence of pneumothorax . The lungs demonstrate mild interstitial edema and the cardiomediastinal silhouette is normal . There is no pleural effusion .
    OUTPUT:
    
1 . Satisfactory positioning of right internal jugular central venous line , terminating at the superior cavoatrial junction . No pneumothorax . 2 . Mild interstitial edema .