Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal radiograph of the chest shows the tip of the NG tube at the approximate gastroesophageal junction . For more appropriate positioning , this should be advanced further . The chest is not completely imaged on this view and compared to the prior study , there is no other relevant change .
    OUTPUT:
    
Tip of the NG tube in the lower esophagus , should be advanced for more appropriate positioning .