Conversation: The conversation between human and AI assistant.
[|Human|] Could anyone tell me what this could be? I just noticed an almost golf size knot, bump, lump whatever you want to call it on the lower left side of my head. It caught my attention when I layed down on that side and it is sore. When I touch both sides of my head the lower left side of my head is bigger. What is it?
[|AI|]  Hi, dairy have gone through your question. I can understand your concern.  You have golf ball size lump on head.  It can be due to reactive hyperplasia of lymph node, soft tissue tumor, Desmond cyst, skin adnexal tumor or some other lesion.  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.