Endocrine Abstracts

Familial Dysalbuminaemic Hyperthyroxinaemia (FDH) is characterised by mutant albumin with increased affinity for thyroxine, and to a lesser extent triiodothyronine, giving falsely elevated fT4 and fT3 levels in standard assays. This may lead to inappropriate management of euthyroid patients, and complicate diagnosis and management of thyroid disease in patients with coexistent FDH. We report a case of Graves’ thyrotoxicosis complicated by underlying FDH. A 41-year-old wom...