Conversation: The conversation between human and AI assistant.
[|Human|] My dad had colon cancer 23 yrs ago and had his colon removed and has been cancer free ever since. He went in to have his gallbladder removed and they found spots on his liver but all bloodwork was normal. They are doing a biopsy, but I m too anxious for the results. Are his odds higher for liver cancer?
[|AI|]  Hi. The biopsy will clear the doubt. There are chances of having spread (metastasis) from his old treated cancer as well as metastasis from some other cancer and liver cancer itself. If his blood tests of alpha fetoprotein (AFP) and CEA are normal, odds of liver cancer and metastasis from colon cancer are low. Biopsy is the recommended procedure to make things clear. Hope I have answered your query. If you have any further question, I will be happy to help.