Conversation: The conversation between human and AI assistant.
[|Human|] my father has been diagnosed with stage 4 melanoma and after three surgeries it has all come back on his back.  His cat scan is still clear however it is inoperable now since they would have to go to deep to get it, and it is now in a node under his harm.  He has received 10 palliative radiation treatments and is still doing quite well no weight loss or pain.  He is 83 years old with a very positive attitude
[|AI|]  Hi, Thanks for writing in. Malignant melanoma is a type of skin cancer which shows aggressive spread. Since it is deep-seated therefore treatment with chemotherapy and radiation therapy is suggested. He might be having a good will power to fight cancer and the medicines are showing response. Regular follow up is required to know if the tumor is stabilized and any other organs that are involved. The cancer in the back is stabilized due to treatment and not showing aggressive progression. His positive attitude is keeping him fit and hope he continues to be this way. Please provide him with a daily 2200 kcal diet and also give pain relief should have any pain. Please do not worry.