Fig. 4

Recurrence-free survival of GC according to the histological subtype. a GC without AC indication. b GC with AC indication. GC, gastric cancer; AC, adjuvant chemotherapy; tub1, well-differentiated tubular adenocarcinoma; tub2, moderately differentiated tubular adenocarcinoma, pap, papillary adenocarcinoma; muc, mucinous adenocarcinoma; por, poorly differentiated adenocarcinoma, either solid or poorly cohesive type; sig, signet-ring cell carcinoma; nec, neuroendocrine carcinoma. There was no case of nec in the tier without AC indication, while there were two cases of nec in the tier with AC indication