Immunofluorescence staining for the M2 macrophage marker CD206 and the monocyte/macrophage marker CD68 in formalin‐fixed paraffin‐embedded (FFPE) tissues of meningioma samples (Figure 1G) demonstrated an increased CD206+/CD68+ cell ratio in grade II/III meningiomas, confirming the M2‐like polarization of macrophages. The gene discussed is MRC1; the disease is meningioma.