Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: ETT tip projects approximately 2 .5 cm from the carina . An enteric tube traverses the diaphragm into the left upper quadrant with its tip is beyond the field of this image . The lungs are well - expanded . The heart is normal in size . The mediastinum is not widened . No pneumothorax or pleural effusion . Bilateral , symmetric increased interstitial markings is likely secondary to bronchovascular crowding in the setting of lower lung volumes . No edema . Minimal atelectasis in the retrocardiac region is new . An ovoid opacity projects over the right hemithorax and appears to be external to the patient . No acute osseous abnormality .
    OUTPUT:
    
1 . ETT 2 .5 cm from the carina with neck flexed . 2 . No edema . Interval development of focal atelectasis in the retrocardiac region .