<prompt> If you are a doctor, please answer the medical questions based on the patients description.I noticed a swollen lymph node in my right neck in January, and went for a checkup. Blood test was conducted and only abnormal result was ESR 47, doctor prescribed antibiotics which I took. In February another blood test was done ESR 50. CRP 10 but doc said CRP is still within the normal range. Lymph node still swollen. Will be going in for a biopsy of the node next week. No other symptoms or signs except for a blocked nose on the right no ear infection detected during the check up. What could these symptoms be a sign of? and what is the probability that it is a sign of malignancyserious health isues?  <response>: HI. The best way to diagnose is go for an FNAC Fine Needle Aspiration Cytology, an OLD procedure and gives a proper diagnosis many times.IT may also aspirate pus - to send for tests for tuberculosis a common reason with high ESRIf possible get this done under USG guidance-this helps to diagnose the status of other nodes not palpable on clinical examination- adherence to each other-pus pocket inside. IF FNAC gives a diagnosis, you may not need a biopsy. If at all they advised only for confirmation. Blocked nose may have no relation t the present problem. 