Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP single view of the chest has been obtained with patient in sitting semi-upright position . Analysis is performed in direct comparison with the next preceding portable chest examination of ___ . During the interval previously existing Swan - Ganz catheter and sheath have been removed and a new right internal jugular approach central venous line has been placed , the tip of which is overlying the right - sided superior mediastinum . The termination occurs 2 cm above the level of the carina and thus indicates position in the superior third of the SVC . No pneumothorax has developed . Previously described status post aortic valve replacement and right - sided chest tube advanced from below is unchanged . No new pulmonary abnormalities are seen and the pulmonary vascular congestive pattern has not increased .
    OUTPUT:
    
Successful placement of right internal jugular central venous line .