I would recommend that you seek consultation with your primary care physician for thorough evaluation. Your physician will complete a physical examination, and recommend referral for a biopsy if deemed warranted. This (a biopsy) would be necessary to determine if the lymph nodes are malignant (cancerous) or benign (noncancerous). The appropriate treatment would be recommended if the node is malignant. If treatment includes surgery, this procedure will excise/remove the cancer, and is not associated with any risk of spread. If the lymph node is benign, usually surgery is not indicated, unless associated with symptoms warranting such intervention.
Thank you for entrusting me with your clinical concerns.