Introduction/Background*The clinicopathologic characteristics, recurrence patterns, and survival of patients with grade III endometrial cancer (G3EC) and uterine carcinosarcoma (UCS) were compared.
Methodology The medical records of patients treated for G3EC and UCS between January 1996 and December 2016 at X gynecologic oncology centers in Turkey and Germany were analyzed.
Result(s)*UCS was diagnosed in 353 (48.2%) of the enrolled patients and G3EC in 380 (51.8%). The patients in each group were divided into three subgroups depending on the disease stage: early (stage IA), locally advanced (IB-II) and advanced (III-IV). For all stages, the recurrence rate was higher in patients with UCS than in those with G3EC. Adjuvant treatment type had no significant effect on disease-free survival (DFS) or overall survival (OS) in patients with early stage tumors. In patients with locally advanced disease, radiotherapy (RT) + chemotherapy (CT) was the most effective type of adjuvant therapy with respect to DFS and OS. In those with advanced disease, RT + CT was the most effective type of adjuvant therapy but only with respect to DFS.
Conclusion*The recurrence rate was higher in UCS patients than in G3EC patients, regardless of disease stage. DFS was of shorter duration in UCS than in G3EC patients. OS did not significantly differ between UCS and G3EC patients with early or locally advanced disease. In patients with early stage UCS or G3EC, adjuvant therapy modalities had no effect on survival. However, in both groups of patients with locally advanced disease, adjuvant CT and RT resulted in a significant improvement in DFS and OS.
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