SI and myeloid sarcoma: In addition to granulocytes and monocytes, we also detected significantly negative correlations between the proportion of the CD8lowCD56+CD161+ (N6) NK sub-population and anti-S1 IgG antibody production in aCD20-treated NMOSD patients as well as a negative correlation with the S-I-specific CD4+ T cell response in aCD20-treated MS patients.