Conversation: The conversation between human and AI assistant.
[|Human|] My 15 year old son has a lump about the size of a quarter on the top of his forearm. it has two small black dots in the center of it. This just came up a couple of days ago. It is not terribly painful or red. He also has an unusually strong headache tonite and is very tired.
[|AI|]  Hi, dairy have gone through your question. I can understand your concern. You may have some benign cyst like sebaceous cyst or Desmond cyst or some other soft tissue 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.