Abstract
The aim of this study was to identify predictors of cervical stromal involvement in women with endometrioid-type endometrial cancer (EEC). A total of 795 patients with EEC who underwent comprehensive surgical staging including pelvic and para-aortic lymph node dissection between January 2007 and December 2018 were retrospectively analyzed. Data including age, menopausal status, serum CA-125 levels, tumor size, lymphovascular space invasion (LVSI), depth of myometrial invasion, positive peritoneal cytology, cervical stromal involvement, histologic grade, recurrence, and follow-up duration were recorded. Median follow up was 49months. Cervical stromal invasion was found in 88 patients. Multivariate analysis revealed that presence of LVSI (hazard ratio [HR] 2, 95% confidence interval [CI] 1.02-4.25, P=0.045), a primary tumor diameter of at least 3cm (HR 3, 95% CI 1.31-7.25, P=0.010), and at least 50% deep myometrial invasion (HR 2.7, 95% CI 1.37-5.41, P=0.004) were independent risk factors for cervical stromal involvement in patients with EEC. Our study results suggest that presence of LVSI, a primary tumor diameter of at least 3cm, and LVSI of at least 50% seem to be independent predictors of cervical involvement in women with EEC.
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