Have you gotten any direction from the doctors on what is to be done? It sounds like they have given you a diagnosis but not much more than that? I encourage you to ask questions of them- and if they wont' answer them or if you are still not sure, get a second opinion from another doctor. So sorry your mother is going through this- it's hard when a new diagnosis is given, as it's unknown territory, but don't be afraid to press the doctors for answers.