Inclusion Criteria:

- Patients with endometrial cancers who undergo hysterectomy, bilateral
salpingo-oophorectomy, omentectomy, and appendectomy will be enrolled and the
clinical data will be obtained from our hospital. All of the patients received four
to six courses of adjuvant platinum-containing chemotherapy.Histologic grading was
according to International Union against Cancer criteria (28). The stage of disease
was classified according to the International Federation of Gynecology and Obstetrics
(FIGO, 1987). Pelvic and paraaortic lymph node samplings will be performed, if the
disease will be confined to within the ovary or will be without a ruptured capsule.
The histopathologic data, including histologic type and histologic grade, will be
evaluated by a certified pathologist. The maximal diameter of the residual tumor
after surgery will be also recorded. All patients will be followed up at 3-month
intervals.