Encefalitis autoinmune; síndrome paraneoplásico por teratoma maduro ovárico

Background: The anti-N-methyl-D-aspartate (NMDAr) encephalitis was first described in 2005 and in 2007 the antibodies against the NMDA were identified by Dalmau et al.It is estimated that it affects 1.5 per million individuals every year, but it is more frequent in young women ranging from 15 to 2...

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Main Authors: Andrea Trejo, Aldo Blanco, Rony López
Format: Article
Language:Spanish
Published: Colegio Médico de Honduras 2023-12-01
Series:Revista Médica Hondureña
Subjects:
Online Access:https://www.camjol.info/index.php/RMH/article/view/16927
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author Andrea Trejo
Aldo Blanco
Rony López
author_facet Andrea Trejo
Aldo Blanco
Rony López
author_sort Andrea Trejo
collection DOAJ
description Background: The anti-N-methyl-D-aspartate (NMDAr) encephalitis was first described in 2005 and in 2007 the antibodies against the NMDA were identified by Dalmau et al.It is estimated that it affects 1.5 per million individuals every year, but it is more frequent in young women ranging from 15 to 25 years, and 37% of them can manifest as a paraneoplasic syndrome in association with an ovarian teratoma.Case description: A 17-year-old female with personal history of left ovarian teratoma, one week after its surgical removal presents: auditory hallucinations, persecutory delusions, insomnia, anhedonia, agitation, speech impairment, orofacial dyskinesia, and gait alterations during one month. An electroencephalogram (ECG) reported severe cortical-subcortical. The cerebral Magnetic Resonance Imaging (MRI) and the Cerebrospinal Fluid (CSF) analysis, reported no findings. Given the clinical suspicion, immunosuppressive treatment with intravenous corticosteroids was initiated, along with symptomatic management antipsychotic, for agitation and anxiety; initially with midazolam infusion and then with olanzapine, risperidone, and clonazepam; obtaining satisfactory clinical improvement. Finally, the diagnosis was confirmed by a positive IgG against the N1 glutamate subunit (Glu N1) of the NMDAr. Conclusion: The anti NMDAr encephalitis is a rare and underdiagnosed condition, which can be mistaken as a primary psychiatric disease. Given a first psychotic episode, an extense interrogatory and evaluation must be done to exclude secondary causes, such as, autoimmune disorders with neurologic repercusions.
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spelling doaj.art-4b259d1aae3940e6b1492726a3ef75482023-12-28T03:50:45ZspaColegio Médico de HondurasRevista Médica Hondureña0375-11121995-70682023-12-0191, No. 212513010.5377/rmh.v91i2.16927Encefalitis autoinmune; síndrome paraneoplásico por teratoma maduro ováricoAndrea Trejo0https://orcid.org/0000-0002-8721-9165Aldo Blanco1https://orcid.org/0000-0002-7324-3789Rony López2https://orcid.org/0000-0002-1023-9272Universidad Nacional Autónoma de Honduras, Facultad de Ciencias Médicas; Tegucigalpa, Honduras.Hospital María, Especialidades Pediátricas, Servicio de Neurología Pediátrica; Tegucigalpa, Honduras.Hospital María, Especialidades Pediátricas, Servicio de Pediatría; Tegucigalpa, Honduras.Background: The anti-N-methyl-D-aspartate (NMDAr) encephalitis was first described in 2005 and in 2007 the antibodies against the NMDA were identified by Dalmau et al.It is estimated that it affects 1.5 per million individuals every year, but it is more frequent in young women ranging from 15 to 25 years, and 37% of them can manifest as a paraneoplasic syndrome in association with an ovarian teratoma.Case description: A 17-year-old female with personal history of left ovarian teratoma, one week after its surgical removal presents: auditory hallucinations, persecutory delusions, insomnia, anhedonia, agitation, speech impairment, orofacial dyskinesia, and gait alterations during one month. An electroencephalogram (ECG) reported severe cortical-subcortical. The cerebral Magnetic Resonance Imaging (MRI) and the Cerebrospinal Fluid (CSF) analysis, reported no findings. Given the clinical suspicion, immunosuppressive treatment with intravenous corticosteroids was initiated, along with symptomatic management antipsychotic, for agitation and anxiety; initially with midazolam infusion and then with olanzapine, risperidone, and clonazepam; obtaining satisfactory clinical improvement. Finally, the diagnosis was confirmed by a positive IgG against the N1 glutamate subunit (Glu N1) of the NMDAr. Conclusion: The anti NMDAr encephalitis is a rare and underdiagnosed condition, which can be mistaken as a primary psychiatric disease. Given a first psychotic episode, an extense interrogatory and evaluation must be done to exclude secondary causes, such as, autoimmune disorders with neurologic repercusions.https://www.camjol.info/index.php/RMH/article/view/16927encephalitisn-methyl-d-aspartate receptormature teratoma
spellingShingle Andrea Trejo
Aldo Blanco
Rony López
Encefalitis autoinmune; síndrome paraneoplásico por teratoma maduro ovárico
Revista Médica Hondureña
encephalitis
n-methyl-d-aspartate receptor
mature teratoma
title Encefalitis autoinmune; síndrome paraneoplásico por teratoma maduro ovárico
title_full Encefalitis autoinmune; síndrome paraneoplásico por teratoma maduro ovárico
title_fullStr Encefalitis autoinmune; síndrome paraneoplásico por teratoma maduro ovárico
title_full_unstemmed Encefalitis autoinmune; síndrome paraneoplásico por teratoma maduro ovárico
title_short Encefalitis autoinmune; síndrome paraneoplásico por teratoma maduro ovárico
title_sort encefalitis autoinmune sindrome paraneoplasico por teratoma maduro ovarico
topic encephalitis
n-methyl-d-aspartate receptor
mature teratoma
url https://www.camjol.info/index.php/RMH/article/view/16927
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AT ronylopez encefalitisautoinmunesindromeparaneoplasicoporteratomamaduroovarico