Expression of IgG4 in thyroid tissues of Hashimoto's thyroiditis and its clinical and histological characteristics

Immunohistochemistry was carried out for assessment of the expression of IgG4 and IgG in 29 patients with Hashimoto's thyroiditis(HT) and 26 other patients with subacute thyroiditis, thyroid adenoma, and thyroid carcinoma. HT group were divided into IgG4 HT(10/29) and non-IgG4 HT(19/29)groups. Statistical analyses of clinical and histological characteristics were also conducted in both groups. 2 cases of subacute thyroiditis were IgG4...