the association between endometriosis and surface epithelial ovarian tumors: a review of pathological data

Background: endometriosis is a prevalent benign condition arising from female reproductive system and affects about 7% to 10% of females. the association of this disorder with epithelial ovarian tumors has been a matter of interest in gynecology. objectives: the present study was conducted to assess the association between endometriosis and different types of surface epithelial ovarian tumor. methods: microscopic slides of 182 cases with the diagnosis of surface epithelial ovarian carcinomaandborderlinetumorfrom2007 to 2014 were reviewed for the presence of endometriosis in a tertiary gynecological center. additional data included age, tumor size and laterality, site of endometriosis, presence of atypical endometriosis, and concomitant uterine endometrial carcinoma. results: endometriosis was found in 32 out of the 182 (17.58%) of reviewed ovarian epithelial tumor cases. they included endometrioid carcinoma (46.87%), clear cell carcinoma (18.75%), borderline epithelial tumor (31.25%), and low-grade serous papillary carcinoma (3.12%). conclusions: endometrioid and clear cell types of ovarian tumors were most frequently associated with endometriosis.