One of the hardest things to deal with..........a sick family member. Of course your dad and family will be in my thoughts and prayers! I know its not easy. My parents' friend's 2 year old son was diagnosed with cancer last year. He's been on treatment for over a year now, and this did his scans last week to check if the cancer's gone. Nope........there are two new tumors in other places...........so they're repeating the treatment. He looks/acts normal, but that's because he's under treatment. If they let go, it will spread. Poor baby.......my heart goes out to his family, as it does to your's. Cancer isn't an easy thing to deal with. Its scary.........very scary, and you have my thoughts and prayers.