CEACAM5 and gastric cancer: A prospective multicenter study of advanced GC (AGC) patients undergoing radical resection revealed that disease-free survival (DFS) and peritoneal recurrence-free survival (RFS) in the positive TRC-CEA group are significantly lower than those in the negative group and that TRC-CEA could be an important prognostic marker to predict survival and peritoneal recurrence in GC with serosal invasion (15).