Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The NG tube has been advanced , and now terminates in at least the stomach though the distal tip is not visualized on the current study . There are no other relevant changes . Left subclavian line terminates at the cavoatrial junction . Endotracheal tube is 4 .1 cm above the carina . Unchanged appearance of left lung base opacity which may be due to a small pleural effusion with adjacent atelectasis . Right lung is essentially clear . There is no pneumothorax . Cardiomediastinal silhouette is within normal limits .
    OUTPUT:
    
NG tube has been advanced to at least the stomach . No other relative changes .