PRF1 and myeloid sarcoma: These three molecules were significantly upregulated in F-MS patients compared to in nF-MS and HS (nF-MS and HS, granzyme B: p < 0.0001 and p = 0.013; perforin: p = 0.0001 and p = 0.0051; FasL: p = 0.0002 and p = 0.0085).