Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP portable upright view of the chest . Interval placement of a right IJ central venous catheter with its tip extending into the right atrium . Right mid and lower lung opacities are again noted consistent with multifocal pneumonia . Otherwise no change . No pneumothorax .
    OUTPUT:
    
Right IJ central venous catheter tip terminates in the right atrium . Retraction by at least 5 - 6 cm would result in more optimal positioning .