MRC1 and signet ring cell carcinoma: As for characteristics at baseline between groups, there were no significant difference in terms of age, sex, Eastern Cooperative Oncology Group (ECOG) performance, location and size of the primary tumour, tumour invasion, LNs metastasis, signet ring cell carcinoma, histologic differentiation, laparoscopic exploration, haematology-related tumour markers, MMR, and EBER status.