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Leucine-rich glioma-inactivated protein 1 antibody encephalitis: A case report
Yunis Mayasi1, Deepak Takhtani1, Neeta Garg1
1Departments of Neurology (Y.M., N.G.) and Radiology (D.T.), University of Massachusetts Medical School, Worcester, MA.
Objective:
To describe a case of leucine-rich glioma-inactivated protein 1 (LGI1) antibody-associated encephalitis.
Methods:
The clinical and ancillary data and brain MRIs were gathered retrospectively by chart review. Relevant literature on similar cases was also reviewed.
Results:
The diagnosis of LGI1 antibody-associated autoimmune encephalitis was based on the typical clinical presentation of seizures, psychiatric symptoms, and memory loss as well as negative diagnostic testing for cancer; the diagnosis was confirmed by positive LGI1 antibody. The patient responded favorably to treatment with IV immunoglobulin and continues to do well.
Conclusion:
LGI1 antibody-associated encephalitis has increasingly been recognized as a primary autoimmune disorder with good prognosis and response to treatment.
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