DIAGNOSIS OF ENDOCRINE DISEASE: IgG4-related thyroid autoimmune disease

Mario Rotondi, Andrea Carbone, Francesca Coperchini, Rodolfo Fonte, Luca Chiovato

Research output: Contribution to journalReview article

Abstract

IgG4-related disease (IgG4-RD) is fibro-inflammatory, immune-mediated, systemic disease recognized as a defined clinical condition only in 2001. The prevalence of IgG4-RD is 6/100 000, but it is likely to be underestimated due to insufficient awareness of the disease. The diagnostic approach is complex because of the heterogeneity of clinical presentation and because of rather variable diagnostic criteria. Indeed, high concentrations of IgG4 in tissue and serum are not a reliable diagnostic marker. The spectrum of IgG4-RD also includes well-known thyroid diseases including Riedel's thyroiditis, Hashimoto's thyroiditis and its fibrotic variant, Graves' disease and Graves' orbitopathy. Results from clinical studies indicate that a small subset of patients with the above-mentioned thyroid conditions present some features suggestive for IgG4-RD. However, according to more recent views, the use of the term thyroid disease with an elevation of IgG4 rather than IgG4-related thyroid diseases would appear more appropriate. Nevertheless, the occurrence of high IgG4 levels in patients with thyroid disease is relevant due to peculiarities of their clinical course.

Original languageEnglish
Pages (from-to)R175-R183
JournalEuropean Journal of Endocrinology
Volume180
Issue number5
DOIs
Publication statusPublished - May 1 2019

Keywords

  • Graves Disease/blood
  • Humans
  • Immunoglobulin G/blood
  • Immunoglobulin G4-Related Disease/blood
  • Thyroid Gland/pathology
  • Thyroiditis, Autoimmune/blood

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