Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There has been interval placement of a small - bore endotracheal tube with its tip sitting between the clavicular heads , approximately 7 cm above the carina - just at the thoracic inlet . The heart size is at the upper limits of normal . The mediastinal and hilar contours are unremarkable . The lungs are clear . There is no pleural effusion or pneumothorax .
    OUTPUT:
    
Endotracheal tube tip is just at the thoracic inlet - patient is imaged with the chin down , and the possibility for tube migration out of the thoracic cavity is likely with head repositioning - advancement of the tube is recommended .