Microglial protein expression was not greater in MS when compared to the current control cohort (Iba1: MS: 6.18 ± 0.55 millions of pixels/mm2 vs. control: 6.16 ± 0.7 cells/mm2, p = 0.979; CD68: MS: 1.77 ± 0.32 millions of pixels/mm2 vs. control: 1.35 ± 0.32 cells/mm2, p = 0.368; TMEM119: MS: 0.47 ± 0.23 millions of pixels/mm2 vs. control: 0.49 ± 0.23 cells/mm2, p = 0.9). Here, AIF1 is linked to myeloid sarcoma.