Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Compared with prior radiographs on ___ , the mid trachea just below stent is not well evaluated . There is no change in positioning of the tracheal stent . There is no mediastinal widening or pneumothorax . Heart size is normal . There is no focal consolidation , pleural abnormality or edema .
    OUTPUT:
    
No change in tracheal stent positioning , however the mid trachea just below the stent is not well evaluated on these radiographs .