Struma Ovarii: A Rare Ovarian Teratoma and Follicular Adenoma of Thyroid Gland
Journal
Austin Gynecology Case Reports
Date Issued
2022
Author(s)
Stojanovska, MI
Abstract
Ovarian struma is a germ cell tumor in which thyroid tissue represents more than a half of the tumor and has incidence of 0,3-1% of all ovarian tumors. Most of the patients are asymptomatic and tumor is found incidentally during ultrasound, or with nonspecific symptoms, like pain or abdominal swelling. We report a case of 49-years old woman with no symptoms and an ovarian mass, which was incidentally found during a routine ultrasound examination. On ultrasound she had a tumorous mass on the left ovary with central cystic part filled with dense fluid. Color Doppler showed resistance index RI - 0.64, which did not indicate malignant nature of the tumor, and CA-125 was slightly elevated (38,4 U/ml). The result of the scoring system ROMI was 11 ponts, i.e. low risk for ovarian carcinoma. The patient underwent hysterectomy and bilateral adnexectomy. The final histopathologic report was struma ovarii with well-differentiated neoplasm of uncertain malignant potential.
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