International Journal of Thyroidology  2017;10(1):46-49

doi:10.11106/ijt.2017.10.1.46

A Case of Hyalinizing Trabecular Adenoma of the Thyroid Gland.

Jin Hyun SEO 1 ; Jin Pyeong KIM ; Seung Hoon WOO

Affiliations

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Keywords

Hyalinizing trabecular adenoma; Papillary thyroid cancer; Medullary thyroid cancer

Country

Republic of Korea

Language

Korean

Abstract

Hyalinizing trabecular adenoma of the thyroid gland is a rare benign neoplasm. It is characterized by an encapsulated nodule, trabecular arrangement of polygonal, oval, elongated cells, and hyalinized stroma. It is easily confused with medullary thyroid carcinoma or papillary thyroid carcinoma. Distinguishment with pathologic finding and immunohistochemical studies are needed to make a definite diagnosis. We recently experienced a case of hyalinizing trabecular adenoma of the thyroid gland. A 73-year-old woman present with an incidentally detected left thyroid mass. Fine needle aspiration was performed and papillary thyroid carcinoma was suspected. However, the surgical specimen revealed a hyalinizing trabecular adenoma. We present this case with a review of the literature.