Korean J Obstet Gynecol.  2011 Sep;54(9):548-552. 10.5468/KJOG.2011.54.9.548.

Papillary type thyroid carcinoma originating in struma ovarii: Case report and review of the literature

• Kim JY
• Lim YJ
• Lee JS
• Lee SJ
• Park JY
• Nam JH

• KMID: 2274082
• DOI: http://doi.org/10.5468/KJOG.2011.54.9.548

Abstract

About 15-20% of ovarian tumors are teratomas. Struma ovarii is a highly specialized form of ovarian teratoma, in which thyroid tissue is the predominant element. It is rare, comprising about 2% of all teratomas, and malignant transformation occurs in less than 5% of struma ovarii. Among the malignant struma ovarii, papillary type is the most common histologic type. However, because of the rarity of malignant struma ovarii, there is considerable confusion concerning management. Recently, the authors experienced a case of papillary thyroid carcinoma arising in struma ovarii found in a postmenopausal woman who presented with adnexal mass and underwent laparoscopic unilateral salpingoophorectomy. Therefore, we report this rare case with a brief review of the literature.

Keyword

Thyroid cancer, papillary; Struma ovarii

MeSH Terms

Carcinoma
Female
Humans
Struma Ovarii
Teratoma
Thyroid Gland
Thyroid Neoplasms
Carcinoma
Thyroid Neoplasms

Figure

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  Fig. 1 (A) Transvaginal ultrasonography shows 6×6×4 cm-sized multi-cystic tumor of left ovary. (B) Abdomino-pelvic computed tomography shows about 6.5 cm-sized multi-septated cystic mass with fat component and multifocal calcification in the left ovary.

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  Fig. 2 (A) Gross finding of left ovarian tumor. (B) A struma ovarii with thyroid tissue (H&E, ×40). (C) A struma ovarii with thyroid tissue and focal papillary carcinoma. Arrow is indicated focal papillary carcinoma (H&E, ×40). (D) A struma ovarii with thyroid tissue and focal papillary carcinoma (H&E, ×200).

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