Co-existence of Ovarian Teratomas With Other Gynecological Tumors.

Introduction: This study aims to investigate the co-existence of ovarian teratomas with other benign or malignant gynecological tumors in women who underwent gynecological surgery.

Methods: We retrospectively reviewed all women who underwent gynecological surgery over a 15-year period. Pre-operative, surgical, and histological records were obtained from women who presented with gynecological pathology, aiming to discover a possible link between ovarian teratomas and other gynecological tumors.

Results: Of the total patient sample, 288 (8.2%) had a mature teratoma, and 9 (0.3%) had an immature teratoma. The mean age was 38.0±13.3 years and 30.9±11.1 years, respectively. Women with mature teratoma showed a positive correlation with struma ovarii (SO, p=0.001). Moreover, we reported a positive linear relationship between struma ovarri and thecoma. Of the 288 women with a mature teratoma, 1 (0.3%) had co-existent endometrioid ovarian cancer, and 1 (0.3%) had borderline cancer. There were 14 women (4.9%) with a co-existent serous cystadenoma, 7 (2.4%) with a mucin cystadenoma, 1 (0.3%) with a thecoma, 4 (1.4%) with struma ovarii, 3 (1.0%) had Brenner cyst, 3 (1.0%) had ovarian fibroma, 2 had endometriosis (0.7%), and 8 (2.8%) had endometriomas. Of a total of nine women with immature teratomas, one (11.1%) had a serous cystadenoma.

Conclusions: Ovarian teratomas may co-exist with other gynecological diseases. Our study reports various cases of the co-existence of several gynecological tumors with teratomas.