However, this increased serum cytokine/chemokine response was notspecific for AQP4-Ab and MOG-Ab-associated demyelinating diseases, but also seenin anti-NMDAR encephalitis (77%) indicating a common inflammatory response inantibody (Ab)-associated neurological autoimmune diseases, which is not observedin MS. The gene discussed is AQP4; the disease is myeloid sarcoma.