Conversation: The conversation between human and AI assistant.
[|Human|] Hi,I just notice a lump, maybe the size of a dime on my 5 year old sons neck. It is on the right side of his neck near the back, mid neck. It is hard and moves when I touch it. He says it doesnt hurt and can only feel it when I touch it. I am scared and plan on taking him to the doctor. I noticed it when he moved his head and stretched his neck, it protruded a bit. Should I be overly worried like I am?  Thanks,Para-noid
[|AI|]  Welcome to Chat Doctor .1. You don't have to worry about it. But needs attention and evaluation.2. The way you are explaining it seems for me like, brachial cleft cyst (its disorder by birth - developmental abnormalities), Lymph nodal mass (after any infection / inflammation)3. Only thing you have to do is, get an appointment with your doctor and get an ultrasound neck and soft tissue swelling done.4. The ultrasound will help in reaching to an appropriate diagnosis, by knowing where it is arising from and what it contains and how it is involving adjacent structures. Hope it helps you. Wish you a good health. Anything to ask ? Do not hesitate. Thank you.