Anti-leucine-rich glioma-inactivated 1 limbic encephalitis: A case report and literature review

Liu,Jingyao; Li,Min; Li,Guibo; Zhou,Chunkui; Zhang,Rensheng

doi:10.3892/etm.2015.2866

Anti-leucine-rich glioma-inactivated 1 limbic encephalitis: A case report and literature review

Authors:
- Jingyao Liu
- Min Li
- Guibo Li
- Chunkui Zhou
- Rensheng Zhang
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Affiliations: Department of Neurology, First Hospital, Jilin University, Changchun, Jilin 130031, P.R. China, Changchun Medical College, Changchun, Jilin 130031, P.R. China
Published online on: November 13, 2015 https://doi.org/10.3892/etm.2015.2866
Pages: 315-317

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Abstract

This study describes the case of a 41-year-old woman admitted for anterograde memory loss, right facial grimacing and right arm posturing that had begun 1 month previously. Cranial magnetic resonance-diffusion weighted imaging and -fluid‑attenuated inversion recovery imaging revealed a hyperintense signal in the left hippocampus and right basal ganglia, but no contrast enhancement. An electroencephalogram revealed rhythmic sharp and slow waves and rhythmic θ build‑ups in the left temporal area. Single‑photon emission computed tomography showed increased regional blood flow perfusion in the left cerebral frontal lobe and the right basal ganglia. The cerebrospinal fluid was normal, with the exception of the presence of leucine‑rich glioma‑inactivated 1 (LGI1) antibodies, and LGI1 antibodies were also found in the blood serum. The presence of the antibodies, the faciobrachial dystonic seizures (FBDSs) and the memory loss indicated limbic encephalitis. After 3 months of immunotherapy, the patient was free from epileptic seizures and had undergone a partial memory restoration. FBDSs alone justify the immediate initiation of immunotherapy, even prior to laboratory confirmation of the disease, as early treatment limits the duration of the illness.

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