Severe lymphoid thyroiditis and associated hypothyroidism occurred in all of 7 male and 4 female F(7) derivatives (seventh generation) of rats immunized in each generation against Group A streptococci. This evidence of thyroiditis produced by immunization against a nonthyroidal antigen suggests that some cases of Hashimoto's thyroiditis in humans may result from nonspecific immune responses.
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Cancers (Basel)
December 2024
Department of Surgery, Tulane University School of Medicine, New Orleans, LA 70112, USA.
: Glucagon-like peptide-1 receptor agonists (GLP-1RAs) have demonstrated significant efficacy in obesity treatment beyond their original development for type-2 diabetes management. This comprehensive study investigated the relationship between GLP-1RA use and cancer incidence in individuals with obesity across a 5-year follow-up period. : We conducted a large-scale cohort study using the TriNetX US Collaborative Network database (2013-2023) examining adult patients with obesity.
View Article and Find Full Text PDFCytopathology
January 2025
Department of Internal Medicine, Kuma Hospital, Kobe, Japan.
Objective: Molecular testing is recommended for risk stratification of atypia of undetermined significance (AUS) nodules in the USA; however, it is not routinely performed in some countries owing to limited availability and affordability. Here, we propose a risk stratification algorithm for AUS nodules when molecular testing is unavailable.
Methods: We examined 304 (4.
J Pathol
February 2025
Department of Pathology, University of Cambridge, Cambridge, UK.
Primary thyroid lymphomas comprise largely extranodal marginal zone lymphoma of mucosa-associated lymphoid tissue (EMZL) and diffuse large B-cell lymphoma (DLBCL), followed by follicular lymphoma (FL). They commonly develop from a background of Hashimoto's thyroiditis (HT), where dysregulated immune responses trigger autoreactive infiltrates and drive clonal B-cell evolution. To understand how these lymphomas and their relapse evolve, we investigated 10 cases by mutation profiling, including five with metachronous lymphomas [primary lymphoma (EMZL = 4, DLBCL = 1) with local relapse (EMZL = 3, DLBCL = 2)], one composite EMZL and Epstein-Barr virus (EBV)-positive DLBCL, and four lymphomas (EMZL = 3, FL = 1) with prior or subsequent biopsy showing HT.
View Article and Find Full Text PDFFront Endocrinol (Lausanne)
December 2024
Division of Endocrinology, Mayo Clinic, Jacksonville, FL, United States.
Introduction: BRAFV600E mutation (BRAF) is common in papillary thyroid cancer (PTC), and most patients have an excellent outcome. However, a TERT-promoter mutation (pTERT) in the presence of BRAF (BRAFpTERT) has been demonstrated to confer a more aggressive behavior to PTC. Lymphocytic infiltration is often present in PTC.
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