Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Right internal jugular central venous catheter has been pulled back to the confluence of the right subclavian and right internal jugular veins . The heart remains moderately enlarged . There is a replaced aortic valve . The mediastinal and hilar contours is stable . Small bilateral pleural effusions are unchanged . There is no frank pulmonary edema . Mild bibasilar opacities have worsened . There is no pneumothorax .
    OUTPUT:
    
1 . Right IJ central venous catheter has been pulled back to the confluence of the right subclavian and right internal jugular veins . 2 . Worsened bibasilar opacities could reflect atelectasis or aspiration . 3 . Small bilateral pleural effusions are unchanged .