Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Tip of the endotracheal tube projects over the mid thoracic trachea , approximately 5 cm from the carina . Enteric tube courses beyond the diaphragm , tip not visualized . Heart size is normal . The lungs are essentially clear . No pleural effusion or pneumothorax .
    OUTPUT:
    
Satisfactory position of endotracheal and enteric tubes . Clear lungs .