Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A tracheostomy terminates 4 .4 cm above the carina . The hilar and mediastinal contours are within normal limits . There is no pneumothorax , focal consolidation , or pleural effusion . There is mild central vascular congestion , but no edema .
    OUTPUT:
    
Tracheostomy tube terminating 4 .4 cm above the carina .