hrp0098t10 | Top 20 Posters | ESPE2024

Phenotypic and genotypic characterization and long-term follow-up of patients with thyroid hormone resistance

Van der Auwera Tessa , Breckpot Jeroen , Unuane David , Nauwynck Elise , Van Crombrugge Paul , Decallonne Brigitte , Rochtus Anne

Background: Resistance to thyroid hormone (RTHβ) is a rare disease caused by an inactivating mutation in the thyroid hormone receptor beta gene (THRB). This condition leads to elevated thyroid hormone levels with non-suppressed TSH levels. The clinical phenotype is highly variable, ranging from asymptomatic to signs of hyperthyroidism and/or hypothyroidism. This study analysed the genotype and phenotype of paediatric and adult patients followed in three B...