Tumor growth was associated with a parallel increase in mechanical allodynia (Figure 1B) and in the number of F4/80+/CD64+ monocytes/macrophages inside the tibial nerve trunk ipsilateral to the inoculated hindlimb, as shown by flow cytometric analysis and immunofluorescence staining (Figures 1C, D). This evidence concerns the gene FCGR1A and neoplasm.