Fig. 1

Schematic of patients included in the present study. On searching the electronic medical record database, 325 endometrial cancer patients were discharged from our department from 1 January to 1 November 2015. A total of 283 patients underwent primary surgery during the study period. Among them, 83 cases were excluded due to the following reasons: no available CT scan (n = 57), incomplete information (n = 9), concurrent primary ovarian cancer (n = 4), uterine carcinosarcoma (n = 2) and lymphadenectomy not performed (n = 11)