Univariate analysis showed that pathological T category 4, positive lymph node metastasis, lack of adjuvant chemotherapy, and high FAP expression in the intratumoral region were associated with poor OS, while positive lymph node metastasis, lack of adjuvant chemotherapy, and high FAP expression in the intratumoral region were associated with poor RFS. Here, FAP is linked to metastatic malignant neoplasm in the lymph nodes.