Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There has been interval placement of a nasogastric tube which enters the stomach , tip not visualized . Bilateral subclavian intravenous catheters , including a partially imaged right - sided PiCCO2 monitor , remain in satisfactory position . Small layering right pleural effusion is unchanged . The left lung is clear . There is no pneumothorax . The heart and mediastinum are within normal limits despite the projection .
    OUTPUT:
    
No significant interval change .