<s>[INST] Hello, I ve noticed a hard lump on the right side of my cevicle near the hollow of my neck but on the top of the bone. The left side does not have this. There is a slight weird throbbing pain and it is mildly sensitive to touch. Compared to the left side it is noticeably harder and larger. No lump on the left side at all. Any suggestions? [/INST] Hi, dearI have gone through your question. I can understand your concern. You may have some lump in bone or there can be some enlarged lymphnode.  You should go for x ray. If there is no bony lump then you should go for fine needle aspiration cytology or biopsy of that lump. It can be due to reactive hyperplasia, tuberculosis, lymphoma or metastatic carcinoma in lymphnode. FNAC gives 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 health care magic. Wish you a very good health. </s>