IMR Press / EJGO / Volume 39 / Issue 1 / DOI: 10.12892/ejgo3575.2018

European Journal of Gynaecological Oncology (EJGO) is published by IMR Press from Volume 40 Issue 1 (2019). Previous articles were published by another publisher on a subscription basis, and they are hosted by IMR Press on imrpress.com as a courtesy and upon agreement with S.O.G.

Open Access Case Report
Malignant struma ovarii with synchronous papillary thyroid carcinoma: a rare diagnosis
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1 Department of Gynecology and Obstetrics, Hospital de Cascais Dr. José de Almeida, Cascais, Portugal
Eur. J. Gynaecol. Oncol. 2018, 39(1), 137–139; https://doi.org/10.12892/ejgo3575.2018
Published: 10 February 2018
Abstract

Struma ovarii is a rare form of ovarian tumor, represented in more than 50% by thyroid tissue. Malignant transformation is a rare presentation and comprises about 5% of cases. The authors report a female with papillary thyroid carcinoma arising in struma ovarii, diagnosed after surgery for a right ovarian mass. Thyroid examination showed two nodular lesions in the left lobe. Total thyroidectomy was performed and histology showed a papillary carcinoma, discordant in terms of ovarian tissue, synchronous to the ovary. Radioiodine ablation of residual thyroid tissue was performed and levothyroxine mildly-suppressive treatment was begun. Although the rareness of association, it is of extreme importance that patients with malignant struma ovarii undergo imaging of thyroid gland for study of coexistent disease.
Keywords
Ovarian neoplasm
Struma ovarii
Thyroid neoplasm
Ovarian teratoma
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