Conversation: The conversation between human and AI assistant.
[|Human|] Hi. My husband was diagnosed with stage 4 melanoma in 2009. Had 24 lymph nodes removed 5 with cancer. In February this year re occurred in the liver and lung. Had the trial vervoy in may. After new pet scan showed lung tumor has grown from 2.4 to 6.6. But the liver tumor has decreased in size. What are the chances for survival?
[|AI|]  Hello dear, thanks for your question on Chat Doctor. I can understand your situation and problem. Your husband is having stage 4 melanoma. And this cancer is having very poor prognosis. Lung involvement in melanoma makes the prognosis worse. As his lung mass is growing in size, the prognosis is not good. In my opinion in his case life expectancy is less than 1 year. Five years survival rate is less than 20%.