FSCN1 and breast cancer: Macrophages signature genes CH25H, LYVE1, FSCN1, FOLR2, PLTP, SLC2A5 and FCGBP, and monocytes signature genes RETN, ASGR1 and FCN1 were conformed in the BC‐LM‐F CSF sample (Figure S9, Table S2).