Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The right internal jugular line ends in the mid superior vena cava . The endotracheal tube and nasogastric tube are unchanged in position . Lungs are clear without confluent opacity , pleural effusion or pneumothorax . The cardiac and mediastinal contours are stable . The bones and soft tissues are unchanged .
    OUTPUT:
    
Relatively unchanged appearance compared to the prior radiograph performed one hour prior .