“…Diagnosis of HE should be considered in patients presenting with the neuropsychiatric symptoms and high levels of thyroid antibodies in serum or CSF, in particular thyroperoxidase antibodies excluding other causes of encephalopathy, such as the central nervous system involvement of vasculitic syndromes, metabolic disease, electrolyte imbalance, intracranial infection, poisoning or toxins, and neoplasm. 1,3,4,13,14 EEG abnormalities presented were nonspecific in majority of patients with slow background diffusion. 2,3,10,14 Brain MRI may show abnormalities such as cerebral atrophy, focal cortical abnormality, diffuse subcortical abnormality and nonspecific subcortical focal white matter abnormality.…”