Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Endotracheal tube terminates 5 .5 cm from the carina . Heart size is normal . Mediastinal contours are within normal limits . Mild central vascular congestion . No pleural effusion or pneumothorax .
    OUTPUT:
    
Satisfactory position of endotracheal tube . Mild central vascular congestion .