CSF1R and diffuse large B-cell lymphoma: Conversely, the mean histoscore for CSF1-R (M2 macrophage marker) (4.4 ± 1.3 vs 5.3 ± 0.9, p = 0.01) and the mean CSF1-R+ cell percentage (40.6% ± 23.3 vs 51.8% ± 15.2, p = 0.05) were significantly lower in DLBCL samples than in controls (Figure 4B).