Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single portable supine frontal image of the chest . The ETT terminates 5 .1 cm above the carina . The NG tube projects over the left upper quadrant . The lungs are well expanded . The ill - defined opacities in the left lung base , which may represent atelectasis , but can not exclude pneumonia or aspiration in the right clinical setting . There is no pleural effusion . There is no pneumothorax . The cardiomediastinal silhouette is unremarkable .
    OUTPUT:
    
1 . ETT terminates 5 .1 cm above the carina . NG tube is in the stomach . 2 . Left lung base opacity , which may represent atelectasis but can not exclude pneumonia or aspiration in the right clinical setting .