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KMID : 0356620120270010072
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Journal of Korean Society of Endocrinology
2012 Volume.27 No. 1 p.72 ~ p.76
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A Case of Bilateral Struma Ovarii Combined with Subclinical Hyperthyroidism
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Kim Sang-Mi
Choi Bo-Kwang
Kang Ji-Hyun
Kim Mi-Ra
Jeon Young-Jae
Kim Sang-Soo
Kim Bo-Hyun
Kim In-Ju
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Abstract
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Struma ovarii is a rare monodermal variant of ovarian teratoma accounting for only 2% of all mature teratomas. To be classified as a struma ovarii, teratoma must be composed predominantly of mature thyroid tissue (> 50%). This tumor is generally benign, although malignant transformation has been reported. Struma ovarii occur mostly as unilateral cases, so bilateral cases are quite rare (less than 6% of cases). Struma ovarii occur largely without symptoms or are accompanied by non-specific symptoms, such as abdominal pain, a palpable abdominal mass, and abdominal distension. The preoperative diagnosis is generally difficult. The incidence of hyperthyroidism has been reported to be 5-10% of patients with struma ovarii. Thus, cases of functional bilateral struma ovarii are very rare. We report a case of bilateral struma ovarii with subclinical thyrotoxicosis and a diffuse goiter, mimicking a malignant ovarian tumor, and include a brief review of related literature.
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KEYWORD
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Bilateral struma ovarii, Hyperthyroidism, Ovarian neoplasms
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