Conversation: The conversation between human and AI assistant.
[|Human|] My husband has a hard mass left side of neck under the ear. He had prostate cancer 6 years ago and had the prostate removed. Two years later, the cancer re-occured and he had 33 radiation treatments. He has suffered form radiation proctitis since. He underwent alot of different treatments to treat the rectal bleeding namely had 5 argon plasma coagulation treatments and 60 hyperbaric oxygen treatments. He has noticed this lump about 3 weeks ago. Its not painful. Measures 1 inch. Is hard and not movable? He has a medical apointment in another week.
[|AI|]  Hi, Thanks for writing in. The clinical picture that you have described is suggestive of an enlarged lymph node. This lymph node could be enlarged either during an infection or cancer itself. Only a fine needle aspiration cytology (an investigation where we put in a small needle into the mass and take a small aspirate from the mass) can confirm the cause of the enlargement. Please see his physician for the same. Hope this helps. Regards