Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The endotracheal tube ends about 6 cm above the carina . The cardiomediastinal silhouette and hila are normal . There is no pleural effusion and no pneumothorax .
    OUTPUT:
    
ETT ends 6 cm above the carina , could be advanced by about 2 cm for optimal position .