Conversation: The conversation between human and AI assistant.
[|Human|] My 77 year old dad was told he had prostate cancer in 2010, he didnt tell anyone in his family. In 2013 it was confirmed and he refuses treatment because he doesnt trust doctors. No one can convince him otherwise. He still lives independently. He is weaker than ever before, so it may be going to bones, but we dont know. What stage do you think it is and and what do you think his life expectancy is.
[|AI|]  Hi, dairy have gone through your question. I can understand your concern. Prognosis and survival rate in prostate cancer depends on stage, Gleason score, spread and treatment. He has not taken any treatment. So there is high chance of cancer spread in bone. If it is spread to the bone then it becomes stage 4 cancer and chances of survival is very low. Prognosis is poor. However, for exact prognosis it should go for PET scan. It will give exact idea about spread. Then you should plan accordingly. Hope I have answered your question, if you have any doubts then contact me at bit.ly/ Chat Doctor. Thanks for using Chat Doctor. Wish you a very good health.