CEACAM5 and neoplasm: In both the SEER and FUSCC cohorts, compared with patients without LNM, T1‐2 patients with LNM were more likely to be younger than 60, have poor tumor grade, be pre‐CEA positive, have more perineural invasion, have a higher frequency of T2 status, and have tumors localized more commonly in the left‐sided colon.