Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: In comparison with chest radiograph from an hour earlier , the left PICC line now terminates approximately 2 cm from the cavoatrial junction . There is no pneumothorax . There is little overall change .
    OUTPUT:
    
Left PICC line terminates in the right atrium approximately 2 cm from the cavoatrial junction .