Large Cell Non-Hodgkin's Lymphoma

Hi, I am new to this message board, but I was wondering if there was anyone out there who is dealing with or has already dealt with and been cured of Large Cell Non-Hodgkin's Lymphoma? I have a wonderful friend who has been ripped of all hope by the medical community before she has even begun treatment. They are telling her this is a very rare form of lymphoma, and that most people die from the Chemotherapy, plus there is a low cure rate. Can anyone provide any help? I would seriously like to share something positive with her. Thank You