Carcinosarcoma is a rare tumor of the uterus with a poor prognosis, even when identified and treated at an early stage. The purpose of this study was to identify and analyze prognostic pathologic features and treatment outcomes in patient with stages I and II carcinosarcoma of the uterus. Patients with carcinosarcoma of the uterus who received primary surgical treatment between 1984 and 2004 were identified through an institutional tumor registry. Inclusion criteria were clinical stage I/II disease following hysterectomy and selective pelvic and para-aortic lymph node sampling. Regression analysis was used to determine risk factors for recurrence and survival. Disease-free and overall survival were then determined using Kaplan–Meier analysis. Forty-seven patients with stages I and II carcinosarcoma of the uterus were identified. Age, heterologous or homologous histology, and type of adjuvant treatment were not associated with recurrence or survival. Depth of myometrial invasion was found to correlate to disease-free survival but not overall survival. The number of lymph nodes collected correlated to risk of recurrence and survival. Disease-free and overall survival were greater in patients with higher lymph node count. We conclude that the number of lymph nodes collected was the only risk factor that was found to be correlated to recurrence and survival in patients with early-stage carcinosarcoma. These results support mounting evidence that lymphadenectomy is crucial in patients with carcinomas of the uterus in order to discover occult metastatic disease and potentially provide patients with a therapeutic benefit
- lymph node count
- overall survival
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