Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Since the prior radiograph performed several hr earlier , there has been interval placement of a right internal jugular catheter , which terminates in the mid superior vena cava . Previously described opacity at the right lung base is unchanged . No new areas of focal consolidation , large pleural effusion or pneumothorax . Heart size is normal . Osseous structures are intact .
    OUTPUT:
    
Interval placement of a right IJ central venous catheter positioned appropriately .