Classical prognostic factors in patients with non-advanced endometrial cancer treated with postoperative radiotherapy

SummaryAimAnalysis of classical prognostic factors in patients with non-advanced endometrial cancer treated with postoperative radiotherapy.Materials/MethodsIn the years 1985–1999, 705 patients underwent postoperative radiotherapy due to endometrial cancer: 529 patients with FIGO stage I and 176 with FIGO stage II cancer. Mean age was 58 years. In 96% of patients endometrioid adenocarcinoma was found. In 49.9% the cancer had a high, in 27.9% a medium, and in 22.2% a low degree of differentiation.Results82% of patients had 5-year disease-free survival. In univariate analysis a significantly higher rate of disease-free survival was observed in: patients younger than 60, with moderately and well differentiated cancers, with stage I endometrioid adenocarcinoma with less than 50% myometrial invasion. In multivariate analysis degree of cancer differentiation was the only independent prognostic factor.ConclusionsIn a group of patients with non-advanced endometrial cancer treated with postoperative radiotherapy, degree of cancer differentiation is the primary prognostic factor.