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What is 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: - and explain in detail?
This is a case of rheumatoid ahritis. 1st image shows the boutonniere's deformity. 2nd image shows the Z-deformity of the thumb. 3rd image shows the trigger finger. Most common lymphoma associated with RA is DLBCL. Most common marker of DLBCL is BCL-6 > BCL-2