Conversation: The conversation between human and AI assistant.
[|Human|] Today I noticed a painful lump on the back bottom left side of my head.  It seems to have appeared out of nowhere.  I havent experienced any headaches today.  However, I did take a fall about 3 weeks ago, resulting in a black left eye, top left side of my nose was sore, and there is a slight tenderness in my left temple.  Could these be related or could it possibly be something else?
[|AI|]  Hi, dear I have gone through your question. I can understand your concern. You may have enlarged posterior cervical or occipital lymph node due to some infection or Desmond cyst, soft tissue tumor or skin adnexal tumor.  You should go for fine needle aspiration cytology or biopsy of that lump. It will give you exact diagnosis. Then you should take treatment accordingly. 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.