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Squamous metaplasia with Hashimoto's thyroiditis presenting as a thyroid nodule

✍ Scribed by Tetsuro Kobayashi; Shigeru Okamoto; Hirohide Maruyama; Jun Okamura; Shin-Ichiro Takai; Takesada Mori

Publisher
John Wiley and Sons
Year
1989
Tongue
English
Weight
589 KB
Volume
40
Category
Article
ISSN
0022-4790

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✦ Synopsis

A 59-year-old Japanese female presented a well-limited and movable thyroid nodule. Histologically, the nodule consisted of clusters of squamous cells surrounded by dense connective tissue in Hashimoto's thyroiditis. The squamous cells were well arranged and showed no mitotic figures. We therefore interpreted this nodule as being squamous metaplasia with Hashimoto's thyroiditis rather than squamous carcinoma of the thyroid. There are no previous reports in the literature of nodular formation of squamous metaplasia in the thyroid.

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