Cited by 279Endometriosis Research and TreatmentOvarian cancer diagnosis and treatmentEndometrial and Cervical Cancer Treatments

Ovarian endometriosis associated with ovarian carcinoma: A clinicopathological and immunohistochemical study

Ogawa, Shinji, Kaku, Tsunehisa, Amada, Satoshi, Kobayashi, Hiroaki, Hirakawa, Toshio, Ariyoshi, Kazuya, Kamura, Toshiharu, Nakano, Hitoo·2000·Gynecologic Oncology

Abstract

Objective The purpose of this study was to demonstrate the incidence, the histopathological characteristics, and the proliferation activity of endometriosis and atypical endometriosis associated with ovarian carcinoma.Methods Microscopic slides of primary lesions from 127 patients with primary ovarian carcinoma were reviewed. The presence or absence of endometriosis and the transitions from typical endometriosis to atypical endometriosis and from atypical endometriosis to carcinoma were also histologically evaluated. Ki-67 immunoreactivity of typical and atypical endometriosis and carcinoma was examined. In addition, endometrial metaplasias were also evaluated.Results Of the 127 patients, 37 had endometriosis: 70% (30/43) had clear cell adenocarcinoma, 43% (3/7) had endometrioid adenocarcinoma, 7% (4/60) had serous adenocarcinoma, and none (0/17) had mucinous adenocarcinoma. Thirty-three cases showed typical endometriosis and 29 cases had atypical endometriosis (25 cases had both). Tufting and the stratification of the lining epithelium were observed in 25 and 23 cases, respectively. The transition from typical endometriosis to atypical endometriosis was observed in 22 cases, and the transition from atypical endometriosis to carcinoma, in 23 cases. Only one case showed a direct transition from typical endometriosis to carcinoma. The mean Ki-67 indices were as follows: ovarian carcinoma, 23.1; atypical endometriosis, 9.9; typical endometriosis, 2.7. In 18 cases with metaplasia in endometriosis, eosinophilic metaplasia and ciliated metaplasia were the most common types. Five cases had two types of metaplasia.Conclusions Ovarian carcinomas, especially clear cell and endometrioid adenocarcinomas, are highly associated with endometriosis. Atypical endometriosis shows proliferation activity intermediate to those of typical endometriosis and ovarian carcinoma, suggesting it is a precancerous status.

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Crossref · 10.1006/gyno.2000.5765

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Authors
Ogawa, S., Kaku, T., Amada, S., Kobayashi, H., Hirakawa, T., Ariyoshi, K., Kamura, T., & Nakano, H.
Affiliations
  • Kyushu University (JP)
  • Kurume University (JP)
Venue
Gynecologic Oncology
Publisher
Elsevier BV
Published
2000-05
Volume
77
Issue
2
Pages
298-304
ISSN
0090-8258 (ISSN-L)
OpenAlex
W2018077886
Cited by
279
References
45
Citations by year
2026: 4 · 2025: 7 · 2024: 12 · 2023: 3 · 2022: 7 · 2021: 10 · 2020: 6 · 2019: 18 · 2018: 19 · 2017: 10 · 2016: 13 · 2015: 19 · 2014: 14 · 2013: 20 · 2012: 16
FWCI
5.07
Type
journal article
Language
en
Open access
closed
Locations
  • Gynecologic Oncology (publishedVersion)
  • PubMed (publishedVersion)
Funders
Ministry of Education, Culture, Sports, Science and Technology (09671692, 11671626)
Topics
  • Health Sciences › Medicine › Reproductive Medicine › Endometriosis Research and Treatment
  • Health Sciences › Medicine › Reproductive Medicine › Ovarian cancer diagnosis and treatment
  • Health Sciences › Medicine › Obstetrics and Gynecology › Endometrial and Cervical Cancer Treatments
Keywords
endometrioma, ovarian carcinoma, atypical endometriosis, clear cell adenocarcinoma, endometrioid carcinoma, serous adenocarcinoma, endometrial metaplasia, Ki-67 proliferation index, precancerous lesions, tufting
MeSH terms
Adult, Aged, Aged, 80 and over, Cell Division, Endometriosis, Female, Humans, Immunohistochemistry, Middle Aged, Ovarian Diseases, Ovarian Neoplasms, Adenocarcinoma, Clear Cell, Cystadenoma, Serous, Ki-67 Antigen

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