When a doctor ignores something that blatant, it's time to find another doctor. We allhave cancer in our bodies, daily, but it is fended off by fighter cells, except when it lands in a weakened area of the body, which can be caused by outside factors like asbestos, particles in smoke (bonfire, fireplace, not just smoking) and chemicals in room spray, bleach, and household cleaners. Even carpeting has chemicals that assault the body; of course we can't live in a bubble. Enhancing your immune system is clearly the only way to avoid cancer, so it can fight off mutated cells that form and develop into cancer. If they knew exactly what caused each kind of cancer, it would be cured by now. I hope she goes to a specialist. the cancer field.(oncologist).