Ultrasonographic Findings of Struma Ovarii.

Kwon, Tae Hee; Ji, Eun kyung; Hong, Hae Sook; Kwak, Jin Young; Park, Ji Hyun; Kim, Su Yeon; Kim, Ji Young

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Original Article

Korean Journal of Obstetrics & Gynecology 2002;45(11):1966-1969.
Published online November 1, 2002.

Ultrasonographic Findings of Struma Ovarii.

Tae Hee Kwon, Eun kyung Ji, Hae Sook Hong, Jin Young Kwak, Ji Hyun Park, Su Yeon Kim, Ji Young Kim

¹Department of Radiology, CHA General Hospital, College of Medicine, Pochon CHA University, Korea.
²Department of Obstetrics and Gynecology, CHA General Hospital, College of Medicine, Pochon CHA University, Korea.
³Department of Anesthesiology, CHA General Hospital, College of Medicine, Pochon CHA University, Korea.
⁴Department of Pathology, CHA General Hospital, College of Medicine, Pochon CHA University, Korea.

Abstract

OBJECTIVES
To characterize the ultrasonographic findings of struma ovarii, a rare ovarian tumor composed solely or predominantly of thyroid tissue or the tumor in which hyperthyroidism results from the ovarian thyroid tissue. MATERIALS AND METHODS: Using ultrasonography, preoperative ultrasonographic findings of pathologically proven struma ovarii in six patients were retrospectively evaluated for the site, size, margin, nature (cystic, solid, mixed), septa, mural nodule, calcification, fat, and metastasis. The findings were compared with pathologic findings. RESULTS: All six were unilateral, and smooth tumor margins, 5 were mixed cystic and solid tumors, regular septa and scattered echogenic spots within cyst. One of our cystic tumor (bilocular) had hyperechoic mural nodules. Calcification was found in one tumor and no fat. Malignant change or metastasis was not any tumor. CONCLUSION: Most cases of struma ovarii occurred unilaterally within ovarian teratomas in premeno- pausal women, Struma ovarii has a characteristic ultrasonographic appearance of a complex mass of multiple cysts and solid components with scattered echogenic spots within cyst.

Key Words: Struma ovarii, Ultrasonography

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