Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Patient is status post esophagectomy with gastric pull - through . Large right superior mediastinal mass is re - demonstrated , unchanged from the previous exam , with deviation of the trachea leftward . Heart size appears unchanged , and within normal limits . The mediastinal and hilar contours are similar . There is a small to moderate right and small left , partially loculated , pleural effusions , not substantially changed in the interval . Bibasilar airspace opacities also persist , more pronounced on the right , likely reflective of atelectasis . No pulmonary edema or pneumothorax is identified .
    OUTPUT:
    
No substantial interval change from prior . Status post esophagectomy with gastric pull - through . Right superior mediastinal mass and bilateral partially loculated pleural effusions with bibasilar atelectasis are relatively unchanged .