Hello...Please forgive my bluntness, but I'm surprised you're even writing this massage. Diagnosised a year ago, what on earth have you been doing for the past 12 months. My wife was given 4 to 6 weeks, others I know have been given 4 to 6months and you say diagnosised a year ago. And now you say the cancer spread to the liver and you can't confirm. I'm very sorry to hear all this. But something does not sound right.
Good luck with what ever you plan for your sister.