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Abstract
Objective
To explore the association between epithelial ovarian cancer (EOC) and common benign gynecological disorders.
Study design
The
medical records of 226 patients with EOC treated at Peking Union
Medical College Hospital between March 2011 and March 2012 were
reviewed. Histological evaluations had been performed to determine the
presence of coexisting pelvic endometriosis (n = 17), uterine leiomyoma (n = 66), adenomyosis (n = 22), or endometrial polyps (n = 17).
Results
Coexistence
of endometriosis occurred in 35.3% and 36.4% of cases of the clear cell
and endometrioid subtypes of EOC histology, respectively. Endometriosis
was more likely associated with clear cell or endometrioid ovarian
carcinoma, but less likely with high grade serous cancer. No differences
were observed in the concurrence of uterine myoma, adenomyosis or
endometrial polyps among the different subtypes of EOC.
Conclusions
In
contrast to other common benign gynecological disorders, endometriosis
showed close relationships with the clear cell and endometrioid subtypes
of EOC specifically.
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