CEACAM8 and neoplasm: However, CD66b-postive neutrophils had a tendency to be associated with a good prognosis when located in the tumor margin and peritumoral area of the tumor center, but were correlated with a poor prognosis when the cells were present in the intratumoral area of the tumor center, although these results were not statistically significant (Table 1 and Supplementary Figure S1).