International journal of gynaecology and obstetrics: the official organ of the International Federation of Gynaecology and Obstetrics, 59(3), 245-250
The objective of this study was to examine the occurrence of ovarian endometriosis in epithelial ovarian cancer in Japan.
The presence of ovarian endometriosis was determined by reviewing the sections of resected specimens in 172 epithelial ovarian cancers.
The incidence of ovarian endometriosis in ovarian cancer (14.5%) was higher than that in Western countries. The rank order of incidence of endometriosis in each histologic type was clear cell (40.6%)>endometrioid (23.1%)>serous (8.7%)>mucinous (2.9%). The incidence in serous type was higher when compared with that reported in Western countries. The higher incidence of endometriosis in Japan can be explained by a greater proportion of clear cell type, comprising 18.6% of all the cases and a higher incidence of endometriosis in the serous type.
The association of ovarian endometriosis with epithelial ovarian cancer was more frequently found in Japan.
Jimbo, H., Yoshikawa, H., Onda, T., Yasugi, T., Sakamoto, A., & Taketani, Y. (1998). Prevalence of ovarian endometriosis in epithelial ovarian cancer. *International journal of gynaecology and obstetrics: the official organ of the International Federation of Gynaecology and Obstetrics*, *59*(3), 245-250. https://doi.org/10.1016/s0020-7292(97)00238-5
Jimbo H, Yoshikawa H, Onda T, Yasugi T, Sakamoto A, Taketani Y. Prevalence of ovarian endometriosis in epithelial ovarian cancer. Int J Gynaecol Obstet. 1998;59(3):245-250. doi:10.1016/s0020-7292(97)00238-5
Jimbo, H., et al. "Prevalence of ovarian endometriosis in epithelial ovarian cancer." *International journal of gynaecology and obstetrics: the official organ of the International Federation of Gynaecology and Obstetrics*, vol. 59, no. 3, 1998, pp. 245-250.
Adenocarcinoma, Clear Cell, Age Factors, Carcinoma, Endometrioid, Cystadenocarcinoma, Mucinous, Serous, Endometriosis, Female, Humans, Incidence, Japan, Menopause, Middle Aged, Ovarian Diseases, Ovarian Neoplasms, Parity, Prevalence