Reassessment of myometrial invasion in endometrial carcinoma

Tsunehisa Kaku, Nobuhiro Tsuruchi, Naoki Tsukamoto, Toshio Hirakawa, Toshiharu Kamura, Hitoo Nakano

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Abstract

Objective: To assess different methods of measuring the depth of myometrial invasion in endometrial carcinoma as a prognostic factor. Methods: Eighty-eight cases of stage I or II endometrial carcinoma treated initially by hysterectomy between 1979–1989 were reviewed histologically. Three methods of measuring myometrial invasion were evaluated: 1) percentage of invaded tumor thickness to whole thickness of myometrium, 2) percentage of whole tumor thickness to total thickness of tumor and myometrium, and 3) distance from the tumor-myometrial junction to the uterine serosa. We evaluated the effect of several factors on prognosis by multivariate analysis using Cox regression models. Results: Myometrial invasion determined by these three measurement methods was associated significantly with survival in a univariate analysis. When myometrial invasion assessed by each method and other prognostic factors were entered into a multivariate model, the distance from the tumor-myometrial junction to the uterine serosa, lymphvascular space invasion, and cervical stromal involvement were identified as independently significant prognostic factors. Conclusion: This method of evaluating myometrial invasion by measuring the distance from the tumor-myometrial junction to the uterine serosa was most useful as a correlate with survival. (Obstet Gynecol 1994;84:979-82)

Original languageEnglish
Pages (from-to)979-982
Number of pages4
JournalObstetrics and Gynecology
Volume84
Issue number6
Publication statusPublished - Dec 1994

All Science Journal Classification (ASJC) codes

  • Obstetrics and Gynaecology

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    Kaku, T., Tsuruchi, N., Tsukamoto, N., Hirakawa, T., Kamura, T., & Nakano, H. (1994). Reassessment of myometrial invasion in endometrial carcinoma. Obstetrics and Gynecology, 84(6), 979-982.