Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: In comparison to the examination from 2 hours prior there has been interval placement of a right central venous line which ends in the mid SVC . Lung fields and cardiomediastinal silhouette are unchanged . No pneumothorax .
    OUTPUT:
    
Interval placement of a right central venous line which ends in the mid SVC . A right basilar opacity is unchanged from the examination from a few hours prior .