A benign stromal tumor that produces estrogen.

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Multiple Choice

A benign stromal tumor that produces estrogen.

Explanation:
Thecoma is a benign ovarian stromal tumor that produces estrogen. It arises from thecal (theca interna) cells, which normally make estrogen, so when a thecoma develops, excess estrogen can stimulate the endometrium, potentially causing abnormal uterine bleeding or endometrial hyperplasia. This tumor type is typically benign and solid, often unilateral. Granulosa cell tumors also secrete estrogen but are malignant (or low-grade malignant), so they don’t fit the description of a benign tumor. Theca lutein cysts are functional cysts driven by high hCG states rather than true neoplasms, and fibromas are stromal tumors that generally do not produce estrogen.

Thecoma is a benign ovarian stromal tumor that produces estrogen. It arises from thecal (theca interna) cells, which normally make estrogen, so when a thecoma develops, excess estrogen can stimulate the endometrium, potentially causing abnormal uterine bleeding or endometrial hyperplasia. This tumor type is typically benign and solid, often unilateral.

Granulosa cell tumors also secrete estrogen but are malignant (or low-grade malignant), so they don’t fit the description of a benign tumor. Theca lutein cysts are functional cysts driven by high hCG states rather than true neoplasms, and fibromas are stromal tumors that generally do not produce estrogen.

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