文摘
Our prospective studies in Japan have found an increased ovarian cancer incidence in women with ovarian endometrioma (standardized incidence ratio, 8.95; 95 % confidence intervals, 4.12–5.3). The risk increased with increasing age at ovarian endometrioma diagnosis. The goal of this study was to define the risk factor(s) of ovarian cancer development in a Japanese population with ovarian endometrioma. We also analyzed whether the predisposition toward ovarian cancer is limited to endometrioid and clear cell carcinoma.