Conversation: The conversation between human and AI assistant.
[|Human|] my dad had adenocarcinoma of unknown primary but it was in his parotid gland, lymphs,stomach,liver, spleen, and bones.  It first showed up that we noticed in the parotid.  it grew extremely fast.  from diagnosis to death was less than a month.  he never smoked or drank.  is there a way to guess what the primary was and should this have shown up in fbc labs?
[|AI|]  Hi, dairy have gone through your question. I can understand your concern. He had metastatic adenocarcinoma with unknown primary. It could be from prostate, pancreas, lung or other sites. It is not reflected in full blood count test.  Diagnosis is based on symptom, radiological finding and special blood tests. Hope I have answered your question, if you have doubt then I will be happy to answer. Thanks for using Chat Doctor. Wish you a very good health.