Functioning ovarian tumors in postmenopausal women

Area of Science:

• Gynecologic Oncology
• Endocrinology
• Pathology

Background:

• Elevated estrogen excretion is observed in some postmenopausal women.
• Ovarian epithelial tumors can be associated with hormonal imbalances.

Purpose of the Study:

• To investigate the relationship between estrogen excretion levels and ovarian epithelial tumors.
• To identify specific tumor types associated with high estrogen excretion.
• To explore potential endocrine functions of ovarian tumors.

Main Methods:

• Measured 24-hour urinary estrogen excretion in 80 postmenopausal women with ovarian tumors.
• Classified tumors by histology (mucinous, serous, endometrioid) and stage (including metastatic).
• Assessed stromal luteinization and condensation within tumors.

Main Results:

• 40 of 80 women had elevated estrogen excretion (>9 µg/24 hr).
• High estrogen excretion was significantly more common in mucinous (70.4%) and endometrioid tumors compared to serous tumors (4%).
• Stromal luteinization/condensation was strongly associated with high estrogen excretion (73% vs. 15.8%).

Conclusions:

• Certain ovarian epithelial tumors, especially mucinous and endometrioid types, are frequently associated with high estrogen excretion.
• Stromal changes within tumors correlate with elevated estrogen levels, suggesting a functional endocrine component.
• Identifying ovarian tumors as functioning endocrine tumors is crucial for understanding their behavior and management.