Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A portable frontal chest radiograph demonstrates a nasogastric tube with the tip in the stomach . The cardiomediastinal silhouette is normal . The lungs are clear and there is no pleural effusion or pneumothorax . The tracheostomy tube is unchanged in position .
    OUTPUT:
    
Exchange of a nasogastric tube , with the tip in the stomach .