Conversation: The conversation between human and AI assistant.
[|Human|] my son has a lump in his neck, thyroid tests clear. He had a biopsy yesterday and we now wait for results.  The lump sometimes reduces in size - today we thought it had disappeared but now it is back. It only hurts because it is pressing on his throat. We are worried it is thyroid cancer. His voice is ok (though he shouts as his dog on his farm and this causes hoarseness!!!).  He has had a very large amount of stress recently and has lost weight - could the lump be linked to stress?
[|AI|]  Welcome to Chat Doctor .1. The different things can arise are hypoglossal cyst, brachealcleft cyst, lymphocele, and a lipoma.2.If this case I would get an ultrasound neck done and see the content and extension of the lesion and come to a conclusion.3. As you have already got a sample taken - wait for the result.4. And after that needful action can be taken. Anything to ask ? Do not hesitate. Thank you.