Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A nasogastric tube has been advanced since the prior exam and now folds back on itself in the fundus of the stomach before extending inferiorly below the field of view . Right internal jugular central line tip terminates at the cavoatrial junction . Lung volumes are low . There is no focal consolidation , effusion , or pneumothorax .
    OUTPUT:
    
Nasogastric tube in the stomach The preliminary impression that the tube could have folded back on itself in the gastro - esophageal junction was communicated with Dr . ___ at 2 p .m by phone at ___ . After subsequent confirmatory radiograph , final positioning was communicated via ___ at 3 pm .