Anaplastic Transformation of Papillary Thyroid Cancer in the Retroperitoneum

Case Reports in Pathology
James P SolomonLily J Jih

Abstract

Anaplastic thyroid carcinoma is an aggressive variant of thyroid cancer that in most cases arises from anaplastic transformation of terminally differentiated thyroid carcinomas. This process usually occurs in the thyroid or cervical lymph nodes. Anaplastic transformation in distant metastatic sites is exceedingly rare, only previously documented in a few case reports. We report a rare case of anaplastic transformation of papillary thyroid carcinoma within a large retroperitoneal metastasis in a 64-year-old male 30 years after the initial diagnosis.

References

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Feb 3, 2011·Applied Immunohistochemistry & Molecular Morphology : AIMM·David TachaLiang Cheng
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Dec 20, 2011·Thyroid : Official Journal of the American Thyroid Association·Robert NakayamaHideo Morioka
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Nov 15, 2012·Thyroid : Official Journal of the American Thyroid Association·Nikola Besic, Barbara Gazic

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Citations

Jul 16, 2020·Case Reports in Endocrinology·Gabriel Irizarry-VillafañeVíctor Carlo-Chévere

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