Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A single AP portable radiograph of the chest was acquired . There has been interval placement of a left internal jugular central venous catheter with its tip in the mid-to - upper SVC . No pneumothorax is seen . The exam is otherwise unchanged compared to the radiograph from earlier today , approximately hours ago .
    OUTPUT:
    
Left internal jugular central venous catheter ends in the mid SVC . No pneumothorax .