Believe address is www.eccafe.org for Cathy's EC Cafe.
Ivor Lewis is surgery where they remove upper part of stomach, section of esophagus then do gastric pullup and reconnect. It is huge surgery, and sounds like it could be what they plan for your friend. There are several approaches they use. They may be thinking they will get it all out before it spreads, since the spread is what makes it so deadly. We are in US and that seems to be more aggressive than the treatment you would start with here. I'm thinking something like ablation might be a first course here (if you were in an excellent facility), but I'm not a doctor.
Good luck with your friend, and getting the info you need to help.