Malignant Struma Ovarii in a Postmenopausal Asymptomatic Woman: A Case Report
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Case Report
P: 117-119
September 2011

Malignant Struma Ovarii in a Postmenopausal Asymptomatic Woman: A Case Report

Med Bull Haseki 2011;49(3):117-119
1. Haseki Eğitim ve Araştırma Hastanesi, Kadın Hastalıkları ve Doğum Kliniği, İstanbul, Türkiye
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ABSTRACT

Introduction:

Struma ovarii is an ovarian tumor that consists predominantly thyroid tissue and accounts for only 2% of all mature teratomas. It is usually a benign condition - malignant transformation has been reported to occur in about 5% of all struma ovarii cases.

Case:

A 58-year-old postmenopausal woman attended our outpatient clinic for her annual gynecologic exam, on which a palpable ovary was incidentally found. Ultrasound and magnetic resonance imaging work-up showed two-centimeter solid mass on the right ovary. Laparoscopic salpingo-oophorectomy was performed; the histology report revealed a focus of thyroid papillary carcinoma in a struma ovarii. The patient underwent surgical staging procedure according to the ovarian cancer guideline. The tumor was in stage 1A, thus, no further treatment was indicated apart from follow-up.

Conclusion:

Malignant struma ovarii is a rare neoplasm of the ovary. Surgical staging should be included in the treatment, like in the other germ cell ovarian tumors.