• Gan To Kagaku Ryoho · Aug 2017

    [A Retrospective Analysis of Systematic Lymphadenectomy for Loco-Regional(pT1)Epithelial Ovarian Cancer].

    • Rieko Okubo, Kimihiko Ito, Shinichi Nakatsuka, Hitoshi Watanabe, Taro Yagi, Chihiro Odani, Hitomi Ono, Kanoko Shimoji, Mio Nakagawa, Mayako Goto, Tomohiko Tsuruta, Kensuke Hori, and Lena Tashima.
    • Dept. of Obstetrics and Gynecology, Kansai Rosai Hospital.
    • Gan To Kagaku Ryoho. 2017 Aug 1; 44 (8): 681-684.

    BackgroundThe incidence of lymph node metastasis in pT1 epithelial ovarian cancer is between 5% and 21%. Most cases with lymph node metastasis are those of serous carcinoma; it is relatively rare in mucinous carcinoma. Therefore, there is a recent trend to omit systematic lymphadenectomy in early stage mucinous carcinoma. The purpose of this study was to verify whether the omission of systematic lymphadenectomy in mucinous carcinoma is oncologically safe.MethodsWe reviewed all pT1 epithelial ovarian cancer cases that were treated in our hospital between January 2002 and December 2015.ResultsFiftynine cases of pT1 epithelial ovarian cancer were included. The overall rate of lymph node metastasis was 6.8%(4 in 59). It was 6.5%(2 in 31)in clear cell carcinoma and 22.2%(2 in 9)in mucinous carcinoma.ConclusionAccording to our study, lymph node metastasis in pT1 mucinous carcinoma has a rate of 22.2% and some affected cases were not detected by presurgery imaging studies. Therefore, we need to be careful about the omission of systematic lymphadenectomy in mucinous carcinoma.

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