Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: ETT tip projects approximately 3 .5 cm from the carina . Enteric tube tip and side - port traverses the diaphragm into the left upper quadrant , tips not seen . A right IJ approach Swan - Ganz catheter tip projects within the mediastinal contours , unchanged . Lung volumes remain low with bronchovascular crowding . Retrocardiac opacity and left lower lobe opacity may reflect combination atelectasis and possible small left pleural effusion . Asymmetric central opacity with air bronchograms , greater on the left , may reflect component of asymmetric edema .
    OUTPUT:
    
1 . ETT tip projects approximately 3 .5 cm from the carina . 2 . Persistent low lung volumes , atelectasis , and edema .