The impact of histological subtype in developing both ovarian and endometrial cancer: A longstanding nationwide incidence study

Strong relationships exist between malignancies in the ovary and a second primary malignancy in the endometrium, especially for the endometrioid subtype of ovarian cancer. Viewed from the endometrial site, no special subtype was noted, and the influence of endometrial serous adenocarcinoma in developing serous OC is not plausible.