Hi, I am sorry to hear those bad news. Unfortunately if the liver tumor is too large, there is not much to do to prolong her life. So everything depends on the size of the tumor, the number of tumors, if it is invading other organs or vessels, and if it is a primary liver tumor or if it is a metastasis from another organ. Bilirrubin is inevitably going to go up as the liver gets invaded by the tumor. This will cause liver failure, and ultimately death. If doctors have told you there is nothing else to do, then I would recommend you to keep her comfortable without suffering or pain on whatever time left she has. Let me know if you have further questions or concerns.