Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: NG tube tip at level of T11 that has not significantly changed in position since prior radiograph . Otherwise no interval change . Cardiomediastinal silhouette is unchanged . Severely distended bowel loops likely ileus or obstruction .
    OUTPUT:
    
NG tube tip is not significantly changed in position since prior radiograph . No other interval change .