Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP frontal radiograph through the chest demonstrates a right internal jugular central venous catheter with its tip projecting over the low superior vena cava . No pneumothorax is identified . Lungs are clear bilaterally . There is no pleural effusion , vascular congestion , or consolidation . Osseous structures demonstrate no acute abnormality .
    OUTPUT:
    
Right internal jugular central venous catheter with its tip projecting over the low superior vena cava . No pneumothorax .