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Objective
Riedel’s thyroiditis (RT) is a very rare chronic fibrosing thyroiditis that is often associated with multifocal fibrosclerosis. Although the relationship of RT and IgG4‐related disease (IgG4‐RD) has been suggested, the expression of IgG and IgG4 in thyroid tissues of patients with RT has seldom been studied.
Design
A case series and literature review.
Patients and Measurements
We searched...
Background
Hashimoto's thyroiditis (HT) with serum IgG4 concentrations greater than 135 mg/dL can be diagnosed as elevated serum IgG4 HT. HT can also be classified into IgG4 HT and non‐IgG4 HT based on an immunohistochemistry analysis of IgG4. The aim of our study was to determine the relationship between elevated serum IgG4 HT and IgG4 HT.
Method
Both thyroid tissues and serum samples stored before...
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