Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: ET tube is too low , ending 9 .2 mm above the carina , suggest pulling it back 2 cm . The side port of the NG tube is at gastroesophageal junction . There is no pneumothorax . Moderate subcutaneous air has decreased since previous exam . Left subclavian line ends at cavoatrial junction . There are unchanged small bilateral pleural effusions . However , there are increased left lower lung opacities which are non-specific . The patient had prior sternotomy for CABG . Mildly enlarged cardiac contour is stable .
    OUTPUT:
    
1 . ET tube is low , suggest repositioning . 2 . There is no pneumothorax . 3 . Increased left lower lung opacities are non-specific and could represent atelectasis , aspiration or developing pneumonia . This was discussed with Dr . ___ , resident in charge of the patient at 9 : 27 a .m .