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[Hashimoto's encephalopathy: an anatomicoclinical observation]
X Perrot1, P Giraud, A G Biacabe
1Laboratoire de Diagnostic des Maladies à Prions, France.
Revue Neurologique
|May 2, 2002
Summary
Hashimoto's encephalopathy (HE), a rare neurological condition, can mimic other serious disorders. Early diagnosis is crucial, even without obvious thyroid issues, by checking for antithyroid antibodies in acute encephalopathy cases.
Area of Science:
- Neurology
- Endocrinology
- Immunology
Background:
- Hashimoto's encephalopathy (HE) is a rare neurological complication of chronic lymphocytic thyroiditis.
- Its nonspecific clinical presentation necessitates ruling out other acute encephalopathy causes.
Observation:
- A 29-year-old woman presented with neuropsychiatric symptoms, coma, myoclonus, and seizures.
- Initial presentation suggested Creutzfeldt-Jakob disease, but high antithyroid antibody titers pointed to HE.
Findings:
- Neuropathology ruled out spongiform encephalopathy and revealed activated microglia.
- This suggests microglia activation may play a role in HE pathogenesis.
Implications:
- HE diagnosis should be considered in acute encephalopathy with antithyroid antibodies, even without clinical signs of thyroid dysfunction.
- This case highlights the importance of serological testing for antithyroid antibodies in unexplained encephalopathy.