### instruction:
If you are a doctor, please answer the medical questions based on the patient's description.

### input:
Hi, A couple of weeks ago I felt a hard lump in my neck, its just to the left of my Adams apple and about level with it, maybe a little higher, the lump is some where between a marble and a pea in size, it doesnt hurt and it does move up and down when I swallow and stick my Tongue out, if I push it it moves inwards towards my Adams apple but kind of clicks, or pops as I move it. I have an appointment at my gps tomorrow but Im terrified it might be cancer, could it be a nodule on my thyroid or is it to high up in my neck? Could it be a rock hard lymph node? Do I have a lymph node where I describe? Any ideas/advice would be great.

### output:

Hi ! Good afternoon. I am Chat Doctor answering your query. The history what you have described (moving up and down when I swallow and stick my tongue out) is typical of a hypoglossal cyst. This is a congenital cyst of the hypoglossal duct if not obliterated completely (which it should under normal circumstances). However, it ought to be confirmed by a clinical examination and related investigations like a CT scan/MRI of the neck region to rule out any other swelling arising from a lymph node and or the thyroid itself, which is less likely with the typical history have narrated. If confirmed, this needs a surgery to remove the cyst. I hope this information would help you in discussing with your family physician/treating doctor in further management of your problem. Please do not hesitate to ask in case of any further doubts. Thanks for choosing Chat Doctor to clear doubts on your health problems. Wishing you an early recovery. Chat Doctor.