Ultrasonographic features of IgG4 positive Hashimoto thyroiditis / 中国介入影像与治疗学

ABSTRACT

Objective To investigate ultrasonographic manifestations of IgG4 positive Hashimoto thyroiditis.Methods Ultrasonographic and clinical features of histopathologically proved Hashimoto thyroiditis in 72 patients were retrospectively analyzed.The patients were divided into IgG4 positive group (n=19) and IgG4 negative group (n=53) according to immunohistochemical staining results.Echotexture,nodules,blood flow distribution and function status of thyroid were compared between the two groups.Results There were statistically significant differences in thyroid hypoechogenicity,linear echogenic strands and combined carcinomas (all P＜0.05),while no statistically significant differences in nodule number,blood flow distribution nor function status of thyroid between the two groups were found (all P＞0.05).Conclusion Ultrasonography can provide valuable imaging evidences for clinical diagnosis of IgG4 positive Hashimoto thyroiditis.