Department of Day Oncology Unit Key Laboratory of Carcinogenesis and Translational Research(Ministry of Education/Beijing) Peking University Cancer Hospital and Institute Beijing 100142 China;
Department of Radiation Oncology Key Laboratory of Carcinogenesis and Translational Research(Ministry of Education/Beijing) Peking University Cancer Hospital and Institute Beijing 100142 China;
Department of Oncology Peking University International Hospital Beijing 102206 China;
Colorectal carcinoma; Signet ring cell carcinoma; Nomogram; Overall survival; Cause-specific survival; Prognosis;