<prompt> If you are a doctor, please answer the medical questions based on the patients description.I do not know whether or not to be concerned about a lump in my neck. It has been there for several years now. However, lately I have begun to experience some other disturbing symptoms. I would like to know if the lump is a lymph node or my thyroid. 55-year-old female, 190 lbs. BMI 29, otherwise healthy as an ox.  <response>: Welcome to Chat Doctor .1. In this case first I would examine you, and locate the lesion.2. After that I would perform an ultrasound scan - cheap non-invasive no radiation.3. It will help to find out weather its from your thyroid lymph node brachial cleft cyst lymphocyte.4. Ultrasons will also help to evaluate weather Its operable or not - involvement of the neck vessels.5. So you better take an appointment with your doctor and accelerate the process.6. Hope it helps you. Anything to ask ? Do not hesitate. Thank you. 