The mean number per field (×400 magnification) of mononuclear cells infiltrating the anastomosis in cancer-bearing versus normal rats, respectively, was as follows: CD14 cells 33.91 ± 7.58 versus 36.20 ±7.43, MHC II-positive cells 24.31 ± 7.10 versus 32.25 ± 8.05, and CD3 cells 24.74 ± 6.60 versus 35.84 ± 8.40. This evidence concerns the gene CD14 and cancer.