Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single AP view of the chest provided . There are no significant changes from the prior examination 2 hours prior the endotracheal tube is still in the right mainstem bronchus .
    OUTPUT:
    
No significant changes from the study 2 hours prior . The endotracheal tube still in the right mainstem bronchus . Subsequent images show that the endotracheal tube has been pulled back into appropriate position .