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What Is Known about This Topic • Riedel’s thyroiditis is a rare condition of unknown aetiology, characterised by chronic inflammatory invasive fibrosclerosis of the thyroid gland and surrounding structures. Riedel’s thyroiditis is also
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What Is Known about This Topic • Riedel thyroiditis is a rare disorder. • Riedel thyroiditis has been associated with other thyroid conditions like chronic lymphocytic thyroiditis, hypothyroidism, hyperthyroidism ad anaplastic carcinoma
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Introduction Immunoglobulin G4-related disease (IgG4-RD) is characterized by an immune-mediated fibroinflammatory process that can affect various organs [ 1 ]. Riedel thyroiditis (RT) is a rare form of thyroiditis, which may also occur as part
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Department of Medicine, Monash University, Melbourne, VIC, Australia
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], retroperitoneal fibrosis [ 4 ], Küttner tumour [ 5 ], and Riedel thyroiditis (RT) [ 6 ]. In 2012 a consensus guideline on the nomenclature of IgG4-RD was released, which brought together the disparate organ diseases into 1 disease spectrum [ 1 ]. Figure 1
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. Hashimoto carefully distinguished this condition from Riedel thyroiditis and speculated whether or not it was related to Mikulicz disease, which was remarkably prescient: we now know that patients with this entity, better known as Sjögren syndrome, have a
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What Is Known about This Topic? • Immunoglobulin G4-related disease (IgG4-RD) is a newly recognized fibroinflammatory process defined by a dense lymphoplasmacytic infiltrate rich in IgG4. Riedel's thyroiditis and a subclass of sclerosing
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treatment . Intern Med . 2008 ; 47 ( 8 ): 725 – 9 . 10.2169/internalmedicine.47.0740 18421188 0918-2918 2 Shrestha RT , Hennessey J . Acute and Subacute, and Riedel’s Thyroiditis . In: Feingold KR , Anawalt B , Boyce A , Chrousos G
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. 577 . 8 Shrestha RT , Hennessey J . Acute and subacute, and Riedel’s thyroiditis. [Updated 2015 Dec 8] . In: Feingold KR , Anawalt B , Boyce A , Chrousos G , de Herder WW , Dungan K , , editors. Endotext [Internet] . South
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. Depending on the course of the disease, there is a greater or lesser degree of stromal fibrosis. Notably, it can be very clear in the fibrosing variant of Hashimoto's thyroiditis and in the very rare condition Riedel's thyroiditis. Vigorous physical
