How do you manage gastroesophageal junction cancer after resection with a positive circumferential surgical margin when no neoadjuvant treatment has been given?  

Fortunately this is not a common occurrence in my practice.  However, prior to the wide acceptance of preoperative RT/chemo for esophageal cancer it was more common.  I don't think the data base is very good for answering the question, but I have usually treated these patients with essenti...