As we know some cancers can have similar treatment options. This is a promising study on freezing breast cancer tumors. As we also know, more studies are funded for common cancers. I wonder if they can test this treatment on bile duct tumors. The tumor does have to be on the smaller side. It is worth a share, and has been mentioned on our forum. Something to mention to oncologists who may dismiss right away. You can also ask why it’s not possible, is it due to location?
https://www.mdanderson.org/publications/cancer-frontline/2017/06/-treatment-puts-the-freeze-on-breast-cancer.html