Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The position of the right IJ central venous catheter is not significantly changed as it still projects over the superior cavoatrial junction . A left cardiac pacemaker partially obscures the left lung base . The visualized lungs are clear . There is no pneumothorax or pleural effusion . The cardiomediastinal silhouette is stable . Regional bones and soft tissues are unremarkable .
    OUTPUT:
    
Right IJ central line in satisfactory position . No pneumothorax . Clear visualized lungs .