Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Mild mediastinal widening on the right side is from an air - filled neoesophagus which has an unchanged appearance since ___ . Both lungs are well expanded and clear . No evidence to suggest aspiration or pneumonia . There is no pneumothorax . Heart size is normal , mediastinal and hilar contours are unremarkable .
    OUTPUT:
    
Stable appearance of the mediastinum with the neoesophagus . Lungs are clear . No pneumonia / aspiration .