BMC endocrine disorders · 2023
Familial dysalbuminemic hyperthyroxinemia combined with Graves' disease: a rare case report.
Клинический случайСтатьяНазвание и аннотация: Перевод в очереди
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Li Yuanmeng, Chi Yue, Chai Xiaofeng, Liu He, Li Naishi, Lian Xiaolan
Аннотация
BACKGROUND: Familial dysalbuminemic hyperthyroxinemia (FDH) is an autosomal dominant disease characterised by an abnormally increased affinity of albumin for serum thyroxine. Assay interference and differential diagnosis remain challenging for FDH. The condition is more complicated when FDH is combined with primary thyroid diseases. Co-occurrence of FDH and Graves' disease is rare.
CASE PRESENTATION: We report the case of a 28-year-old woman with complex FDH and coexisting Graves' disease. Initially, the existence of FDH was not recognised. Graves' disease was relieved after treatment with antithyroid drugs and two administrations of radioactive iodine therapy. She subsequently developed primary hypothyroidism and was prescribed levothyroxine replacement. However, thyroid function failed to normalise despite frequent levothyroxine dose adjustments. Ultimately, syndromes involving the inappropriate secretion of thyroid-stimulating hormone (IST) were considered, and FDH was successfully differentiated from other causes of IST.
CONCLUSIONS: A greater focus on FDH when investigating the causes of IST is critical to correctly evaluate thyroid function status and avoid inappropriate treatment, especially in complicated cases with concurrent FDH and primary thyroid diseases.
CASE PRESENTATION: We report the case of a 28-year-old woman with complex FDH and coexisting Graves' disease. Initially, the existence of FDH was not recognised. Graves' disease was relieved after treatment with antithyroid drugs and two administrations of radioactive iodine therapy. She subsequently developed primary hypothyroidism and was prescribed levothyroxine replacement. However, thyroid function failed to normalise despite frequent levothyroxine dose adjustments. Ultimately, syndromes involving the inappropriate secretion of thyroid-stimulating hormone (IST) were considered, and FDH was successfully differentiated from other causes of IST.
CONCLUSIONS: A greater focus on FDH when investigating the causes of IST is critical to correctly evaluate thyroid function status and avoid inappropriate treatment, especially in complicated cases with concurrent FDH and primary thyroid diseases.