candy girl,
The Ampulla Vater is a small nipple-like projection in the beginning of the duodenum. It serves as the conduit for the fluids that move through the bile and pancreatic ducts on their way to the stomach where they begin the process of breaking down the food we eat. This cancer is treated the same as pancreatic cancer, but has a much better outcome. Depending upon the stage, your friend may not need further treatment. If there were positive lymph nodes, chemo will probably be done.
You can find much more info about this cancer and how it is treated by googling 'How is Ampulla Vater cancer treated?'.
Hope you found this helpful
Joan L