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Papillary carcinoma arising in struma ovarii versus ovarian metastasis from primary thyroid carcinoma: a case report and review of the literature
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Abstract(s)
We present a case of a postmenopausal woman diagnosed with an ovarian
mass containing thyroid follicles and foci of papillary thyroid carcinoma
during pathological examination. This patient referred having had a
metachronous thyroid malignancy 10 years before. The differential diagnosis
between a thyroid malignancy arising from a struma ovarii and a metastatic
ovarian tumor originating from thyroid-cancer is challenging. Struma ovarii
should be considered when thyroid components are the predominant element
or when thyroid malignant tissue is identified within an ovarian lesion.
Thyroid carcinoma arising from a struma ovarii is reported to occur in a
minority of cases. Of these, papillary carcinoma is the most frequent subtype
encountered. Regarding primary thyroid carcinomas, papillary carcinomas
have a lower metastatic potential when compared to follicular carcinomas,
and most of the metastases occur in the cervical lymph nodes. Ovarian
metastases are exceedingly rare and generally associated with widespread
disease. However, they must be considered in the presence of previous
history of malignant thyroid carcinoma. The authors review the main clinical,
imaging and therapeutic aspects of both these entities and present the most
likely diagnosis.
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Citation
Inês Leite; Teresa Margarida Cunha; José Pinto Figueiredo; Ana Félix. Papillary Carcinoma Arising in Struma Ovarii versus Ovarian Metastasis from Primary Thyroid Carcinoma: A Case Report and Review of the Literature, Journal of Radiology Case Reports, 7, 10, 24-33, 2013.