In both the central tumor (median 4.0 cells/mm2, SD: 185.2 cells/mm2) and the invasion front (median 4.3 cells/mm2, SD: 265.4 cells/mm2), significantly higher CD66b+ cell densities were measured in the stroma compared to the tumor epithelium (p < 0.05). Here, CEACAM8 is linked to neoplasm.