A 70-year-old female presented to the OPD with deforming ahritis of hands which is B/L symmetrical. Various deformities were observed. A lymph nodal mass is also observed in the cervical region. Which of the following markers would be most likely positive if the biopsy of the lymph node is done: –

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Vikas Bhardwaj
Medical Technologist, AIIMS New Delhi
Updated: Apr 17, 2026