Clinical Research Directory

Inclusion Criteria: 1. Endometrial adenocarcinoma is confirmed by pathology, and the molecular types were microsatellite instability type and low copy type; 2. Stage IA and grade 3 or stage IB (FIGO 2009), without substantial lymph-vascular space invasion; 3. Surgery must have included a hysterectomy and bilateral adnexectomy. Pelvic lymph node sampling and para-aortic lymph node sampling are optional; 4. ECOG score is 0-2; 5. The interval time between surgery and radiotherapy is no more than 8 weeks; 6. The routine blood examination was normal; 7. Compliance is good and informed consent is voluntarily signed. Exclusion Criteria: 1. The patients receive chemotherapy; 2. History of previous malignant disease; 3. Previous diagnosis of Crohn's disease or ulcerative colitis.