Which type of ovarian tumor is most commonly associated with elevated levels of hormonal activity?

• A. Germ cell tumors
• B. Sex-cord stromal tumors
• C. Epithelial tumors
• D. Endometrioid tumors

Answer: (B)

Sex-cord stromal tumors are indeed most commonly associated with elevated levels of hormonal activity. These tumors originate from the ovarian stroma, which is comprised of connective tissue and hormone-producing cells. As a result, they can secrete various hormones, such as estrogen and testosterone, leading to significant hormonal changes and clinical manifestations. For example, certain types of sex-cord stromal tumors like granulosa cell tumors can cause precocious puberty or endometrial hyperplasia due to elevated estrogen levels.

Germ cell tumors primarily arise from the reproductive cells and can produce some hormones, but they are more commonly associated with tumor markers rather than systemic hormonal effects. Epithelial tumors, the most common type of ovarian tumors, typically do not produce hormones and are more often characterized by their impact on the ovarian surface and potential metastatic behavior rather than hormonal activity. Endometrioid tumors, while they have some hormonal association due to their connection with the endometrium, are still not as directly correlated with elevated hormonal levels as sex-cord stromal tumors.

Thus, the hormonal activity seen with sex-cord stromal tumors makes them distinctively notable for their potential effects on the endocrinological status of patients.