Baştan, MerveKole, Merve CakirAksoy, LaleKöle, EmreÇorakçı, Aydın2026-01-242026-01-2420232459-1467https://search.trdizin.gov.tr/tr/yayin/detay/1195704https://doi.org/10.26453/otjhs.1261930https://hdl.handle.net/20.500.12868/4251Objective: The study aims to investigate the prognostic factors in uterine endometrioid adenocarcinoma that affect survival outcomes. Materials and Methods: This retrospective study includes 144 cases which underwent surgical treatment for uterine endometrioid adenocarcinoma. Demographic data and tumour characteristics were evaluated for lymph node metastasis. Stage I and grade 1-2 tumours were divided into lymphadenectomy and non-lymphadenectomy groups, and 5-year survival was assessed. Results: The presence of myometrial invasion of more than 1/2, adnexal metastasis and lymphovascular space invasion were found to be associated with lymph node metastasis (p=0.010 ve 0.019 ve 0.015). In our study, the 5-year survival rate was 87.4%. Survival rate was correlated with age, myometrial invasion, and tumour grade. The 5-year survival rates were 89.8% in lymphadenectomy group and 85.2% in non-lymphadenectomy group, and no statistically significant difference was observed (p=0.575). Conclusion: Myometrial invasion, grade and the age of diagnosis were detected as important prognostic factors of uterine endometrioid adenocarcinomas. We concluded that lymphadenectomy did not increase the survival rate of stage I grade 1-2 endometrioid tumours. Lymphadenectomy may not be performed in stage I grade 1-2 tumours; thus, the morbidities of lymphadenectomy can be avoided.eninfo:eu-repo/semantics/openAccessPrognostic factorsEndometrial cancerlymphadenectomyArticle10.26453/otjhs.1261930833383441195704