Abstract 875: Ovarian and uterine carcinosarcoma: A comparative analysis of prognostic variables and survival outcomes

Objective: Carcinosarcomas (malignant mixed mullerian tumor) of the female genital tract are rare tumors associated with poor outcome. Previous studies have demonstrated that even tumors of similar histology originating in organs that are in proximity may be biologically distinct entities by virtue of their occurrence through different molecular pathways. The objective of this study was to identify site specific differences in the clinical behavior and survival outcome of carcinosarcomas originating in female genital tract by comparing carcinosarcomas arising in the uterus and ovaries. Methods: Data on patients with uterine carcinosarcoma and ovarian carcinosarcoma were extracted from the Surveillance, Epidemiology, and End Results database between 1988 and 2005. Kaplan-Meier log rank and Cox proportional hazards models were used for survival analysis and to identify possible predictors for survival. Results: The identified cohort included 3,683 women, with 2,759 (75%) uterine carcinosarcomas and 924 (25%) ovarian carcinosarcomas. Uterine carcinosarcoma patients were older than patients with ovarian carcinosarcoma (median age 67.61 vs. 65.83 years, p Citation Format: {Authors}. {Abstract title} [abstract]. In: Proceedings of the 101st Annual Meeting of the American Association for Cancer Research; 2010 Apr 17-21; Washington, DC. Philadelphia (PA): AACR; Cancer Res 2010;70(8 Suppl):Abstract nr 875.