Epileptic Seizures and Right-Sided Hippocampal Swelling as Presenting Symptoms of Anti-IgLON5 Disease: A Case Report and Systematic Review of the Literature

Background and ObjectiveAnti-IgLON5 disease is an uncommon neurological disorder characterized by diverse clinical manifestations. Although many relevant cases have been reported, our understanding of this disorder is still quite restricted. We present a rare case of anti-IgLON5 disease and performe...

Full description

Bibliographic Details
Main Authors: Yaoqi Fu, Xiangting Zou, Ling Liu
Format: Article
Language:English
Published: Frontiers Media S.A. 2022-05-01
Series:Frontiers in Neurology
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fneur.2022.800298/full
_version_ 1817985921053622272
author Yaoqi Fu
Xiangting Zou
Ling Liu
author_facet Yaoqi Fu
Xiangting Zou
Ling Liu
author_sort Yaoqi Fu
collection DOAJ
description Background and ObjectiveAnti-IgLON5 disease is an uncommon neurological disorder characterized by diverse clinical manifestations. Although many relevant cases have been reported, our understanding of this disorder is still quite restricted. We present a rare case of anti-IgLON5 disease and performed a comprehensive systematic review of all published cases to expand the clinical spectrum of this disorder.MethodsWe report a 61-year-old woman with an atypical presentation of epileptic seizures with abnormal signals in her right hippocampus on brain magnetic resonance imaging (MRI). A systematic review was performed of electronic databases, including PubMed, EMBASE, China National Knowledge Infrastructure (CNKI), WanFang and VIP China Science.ResultsWe identified 161 cases from 65 publications. With heterogeneous clinical manifestations, we found that bulbar dysfunction, sleep apnea, gait instability and neurocognitive and behavioral symptoms are the most common symptoms of anti-IgLON5 disease. Anti-IgLON5 antibodies presented a higher positive rate and titer in the serum than in the cerebrospinal fluid (CSF). Haplotype DRB1*10:01-DQB1*05:01 is highly correlated with anti-IgLON5 disease. Only 38 patients have presented distinctive MRI alterations (26.2%). Approximately half of the cases are responsive to immunosuppressive or immunomodulatory treatment.ConclusionAnti-IgLON5 disease is characterized by various clinical manifestations and laboratory findings. Immunotherapy may be effective in treating anti-IgLON5 disease, but the results are far from satisfactory. Studies with larger sample sizes are required to improve the current understanding of this disorder.
first_indexed 2024-04-14T00:04:02Z
format Article
id doaj.art-753f74c0fbcc4878abae6439cddaf09e
institution Directory Open Access Journal
issn 1664-2295
language English
last_indexed 2024-04-14T00:04:02Z
publishDate 2022-05-01
publisher Frontiers Media S.A.
record_format Article
series Frontiers in Neurology
spelling doaj.art-753f74c0fbcc4878abae6439cddaf09e2022-12-22T02:23:36ZengFrontiers Media S.A.Frontiers in Neurology1664-22952022-05-011310.3389/fneur.2022.800298800298Epileptic Seizures and Right-Sided Hippocampal Swelling as Presenting Symptoms of Anti-IgLON5 Disease: A Case Report and Systematic Review of the LiteratureYaoqi FuXiangting ZouLing LiuBackground and ObjectiveAnti-IgLON5 disease is an uncommon neurological disorder characterized by diverse clinical manifestations. Although many relevant cases have been reported, our understanding of this disorder is still quite restricted. We present a rare case of anti-IgLON5 disease and performed a comprehensive systematic review of all published cases to expand the clinical spectrum of this disorder.MethodsWe report a 61-year-old woman with an atypical presentation of epileptic seizures with abnormal signals in her right hippocampus on brain magnetic resonance imaging (MRI). A systematic review was performed of electronic databases, including PubMed, EMBASE, China National Knowledge Infrastructure (CNKI), WanFang and VIP China Science.ResultsWe identified 161 cases from 65 publications. With heterogeneous clinical manifestations, we found that bulbar dysfunction, sleep apnea, gait instability and neurocognitive and behavioral symptoms are the most common symptoms of anti-IgLON5 disease. Anti-IgLON5 antibodies presented a higher positive rate and titer in the serum than in the cerebrospinal fluid (CSF). Haplotype DRB1*10:01-DQB1*05:01 is highly correlated with anti-IgLON5 disease. Only 38 patients have presented distinctive MRI alterations (26.2%). Approximately half of the cases are responsive to immunosuppressive or immunomodulatory treatment.ConclusionAnti-IgLON5 disease is characterized by various clinical manifestations and laboratory findings. Immunotherapy may be effective in treating anti-IgLON5 disease, but the results are far from satisfactory. Studies with larger sample sizes are required to improve the current understanding of this disorder.https://www.frontiersin.org/articles/10.3389/fneur.2022.800298/fullanti-IgLON5 diseaseautoimmune encephalitissystematic reviewclinical manifestationlaboratory investigationimmunotherapy
spellingShingle Yaoqi Fu
Xiangting Zou
Ling Liu
Epileptic Seizures and Right-Sided Hippocampal Swelling as Presenting Symptoms of Anti-IgLON5 Disease: A Case Report and Systematic Review of the Literature
Frontiers in Neurology
anti-IgLON5 disease
autoimmune encephalitis
systematic review
clinical manifestation
laboratory investigation
immunotherapy
title Epileptic Seizures and Right-Sided Hippocampal Swelling as Presenting Symptoms of Anti-IgLON5 Disease: A Case Report and Systematic Review of the Literature
title_full Epileptic Seizures and Right-Sided Hippocampal Swelling as Presenting Symptoms of Anti-IgLON5 Disease: A Case Report and Systematic Review of the Literature
title_fullStr Epileptic Seizures and Right-Sided Hippocampal Swelling as Presenting Symptoms of Anti-IgLON5 Disease: A Case Report and Systematic Review of the Literature
title_full_unstemmed Epileptic Seizures and Right-Sided Hippocampal Swelling as Presenting Symptoms of Anti-IgLON5 Disease: A Case Report and Systematic Review of the Literature
title_short Epileptic Seizures and Right-Sided Hippocampal Swelling as Presenting Symptoms of Anti-IgLON5 Disease: A Case Report and Systematic Review of the Literature
title_sort epileptic seizures and right sided hippocampal swelling as presenting symptoms of anti iglon5 disease a case report and systematic review of the literature
topic anti-IgLON5 disease
autoimmune encephalitis
systematic review
clinical manifestation
laboratory investigation
immunotherapy
url https://www.frontiersin.org/articles/10.3389/fneur.2022.800298/full
work_keys_str_mv AT yaoqifu epilepticseizuresandrightsidedhippocampalswellingaspresentingsymptomsofantiiglon5diseaseacasereportandsystematicreviewoftheliterature
AT xiangtingzou epilepticseizuresandrightsidedhippocampalswellingaspresentingsymptomsofantiiglon5diseaseacasereportandsystematicreviewoftheliterature
AT lingliu epilepticseizuresandrightsidedhippocampalswellingaspresentingsymptomsofantiiglon5diseaseacasereportandsystematicreviewoftheliterature