Conversation: The conversation between human and AI assistant.
[|Human|] My brother have undergone thyroidectomy due to cancerous growth one year ago, after that again undergone surgery two months back due to high level of thyroxine found in blood. After surgery everything was alright but now when we did scan it is showing bubbles there which is again cancerous in nature. Kindly advise why it is so and what can be done further.
[|AI|]  Hello, Welcome to Chat Doctor. I had gone through your query and understand your concern. Despite thyroidectomy, thyroid cancer can return, even if you've had thyroid removed completely. This could happen if microscopic cancer cells spread beyond the thyroid before its removed. Thyroid cancer recurrence can occur decades after thyroid cancer treatment. Usually, if there is a recurrence, Radioactive iodine treatment will be given for destruction of remaining and new cancer cells. Hope this helps, Please reply for further queries. Wishing you good health.