CD68 and neoplasm: Comparing the myeloid cell populations, lower number of CD68+ cells were found compared to CD14+ and CD163+ in the stroma compartment (median of cells/mm2 311.4, 1047.1, and 1163.6, respectively), whereas densities in the tumor compartment were comparable (median of cells/mm2 97.3, 171.4, and 132.4, respectively) (Figure 2B).