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Review
. 2021 Dec;22(4):1027-1039.
doi: 10.1007/s11154-021-09648-y. Epub 2021 May 5.

New aspects in the pathogenesis and management of subacute thyroiditis

Magdalena Stasiak  1 , Andrzej Lewiński  2   3
Affiliations
Review

New aspects in the pathogenesis and management of subacute thyroiditis

Magdalena Stasiak et al. Rev Endocr Metab Disord. 2021 Dec.

Abstract

Subacute thyroiditis (SAT) is a thyroid inflammatory disease, whose pathogenesis and determinants of the clinical course were unclear for many decades. The last few years have brought many clinically significant new data on the epidemiology, pathogenesis and management of SAT. Several human leukocyte antigen (HLA) alleles were demonstrated not only to increase the risk of SAT, but also to correlate with SAT clinical course and determine the risk of recurrence. The world-wide epidemic of the coronavirus disease 19 (COVID-19) has provided new observations that the severe acute respiratory syndrome-coronavirus-2 (SARS-CoV-2) can be a potent SAT-triggering factor, and that the clinical course of SAT in patients affected by COVID-19 is different from a typical one. Additionally, many new trends in the clinical course are emerging. In the last years, painless course of SAT is more and more often described, constituting a special challenge in patients hospitalized due to COVID-19. Despite an excellent availability of diagnostic methods, several difficulties in SAT differential diagnosis can be currently encountered and the proper diagnosis and treatment is frequently delayed. False positive diagnoses of SAT in patients with malignancies of poor prognosis constitute a life-threatening problem. Taking into account all the new aspects of SAT pathogenesis and of its clinical course, the new - modified - SAT diagnosis criteria have been proposed.

Keywords: COVID-19; Clinical course; HLA; Recurrence; SARS-CoV-2; Subacute thyroiditis.

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Conflict of interest statement

The authors declare no conflict of interest.

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