Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is an ET tube , which is advanced too far and terminates at the origin of the left mainstem bronchus , with opacification of the left lung , which may represent atelectasis . Alternatively , the left lung opacification may represent pulmonary edema or layering pleural effusion . The right PICC line terminates in the distal SVC . There is a PA catheter and left chest tube , which appear in appropriate positioning . Although the image is severely rotated , the cardiomediastinal silhouette appears stable .
    OUTPUT:
    
1 . ET tube which terminates at the origin of the left mainstem bronchus , and should be retracted . 2 . New left lung opacification , which may represent atelectasis , edema , or layering pleural effusion .