Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: ET tube is seen with tip the now approximately 1 .8 cm from the carina . Enteric tube is seen , tip not clearly identified but potentially off the inferior field of view . Right IJ central venous catheter is now seen . Given rotation to the left as well as leftward mediastinal shift , tip projects over the region of the mid SVC . Indistinct pulmonary vascular markings are again noted . There is dense retrocardiac opacity new since the exam from earlier today . Even with rotation there is left - sided volume loss . Only mild aeration seen at the left mid and upper lung
    OUTPUT:
    
1 . New right IJ line , no pneumothorax . 2 . ET tube tip is now 1 .7 cm from the carina . 3 . Dense retrocardiac opacity progressed over the day and likely largely due to atelectasis potentially from mucous plugging , underlying aspiration or infection are also possible .