Hello cfcfan and welcome to this forum.  Sorry to learn about your grandad.  Don't panic yet - there are a number of things that you need to know about before your family can have some idea of what is likely to happen and treatments that may be offered.  He should be given this information by his doctor and will then  be involved in the discussion about what is best.  You don't say much about your family but I trust that there are family members (? your grandmother and your parents) will be out there cheering him on.   (I am presuming that you are a fan of Chelsea Football Club hence my comment.)  Your shock is totally understandable and the sooner your grandfather and the family know the full facts about his cancer and what can be done the better for all concerned.  Do feel free to post again when you know a bit more and if you want to talk about it.  Annie