What is the name of your insurance company?? Everyone should know. What reason are they giving you?? I've never heard where an insurance company won't cover surgery needed for initial cancer treatment. Most do not cover what would be considered experimental treatments or therapy but that is hardly considered experimental. There should be some agency or someone you would be able to contact. I would come down hard on that insurance company particuarly if having this surgery can evoke a chance of cure, otherwise, they will have to pay for all the costly treatments that will occur when the cancer takes hold. Everyone knows if cancer is not treated early it will spread.