Guillain-Barré syndrome with transition from hashimoto's to graves' disease: a case report

BACKGROUND: On rare occasions, there can be a transition from Hashimoto's to Graves' disease. However, there are no reported cases of transition from Hashimoto's to Graves' disease triggered by the onset of Guillain-Barré syndrome. Case presentation. Sixteen years prior, a 55-year-old woman was diagnosed with Hashimoto's disease and followed up without medication. One week after the appearance of signs of intestinal inflammation, weakness in the extremities was observed, and a cerebrospinal fluid test was positive for anti-GM1 IgG antibody, leading to the diagnosis of Guillain-Barré syndrome. In addition, hyperthyroidism was observed at the time of admission, and Graves' disease was diagnosed based on autoantibodies and thyroid echoes. Numbness in the extremities was relieved by high-dose intravenous gamma globulin. CONCLUSION: With the onset of Guillain-Barré syndrome, helper T cells became predominantly type 1, effector B cells increased in number, and thyroid-stimulating antibodies were produced, leading to the conclusion that Hashimoto's disease progressed to Graves' disease. Therefore, it is necessary to pay attention to the transition of thyroid function during Guillain-Barré syndrome.