Neurosyphilis with positive anti-N-methyl-D-aspartate receptor antibody: a case report

A case of neurosyphilis with a positive anti-N-methyl-D-aspartate receptor (NMDAR) antibody was reported. A 54-year-old man who presented with acute memory deficits was admitted to our hospital. Acute ischemic stroke (AIS) was initially considered, and he was prescribed intravenous thrombolysis with...

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Main Authors: Zhu Sha, Shi Jing, Gao Feng, Hao Hongjun, Liu Xianzeng
Format: Article
Language:English
Published: Frontiers Media S.A. 2023-05-01
Series:Frontiers in Neurology
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fneur.2023.1164605/full
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author Zhu Sha
Shi Jing
Gao Feng
Gao Feng
Hao Hongjun
Liu Xianzeng
author_facet Zhu Sha
Shi Jing
Gao Feng
Gao Feng
Hao Hongjun
Liu Xianzeng
author_sort Zhu Sha
collection DOAJ
description A case of neurosyphilis with a positive anti-N-methyl-D-aspartate receptor (NMDAR) antibody was reported. A 54-year-old man who presented with acute memory deficits was admitted to our hospital. Acute ischemic stroke (AIS) was initially considered, and he was prescribed intravenous thrombolysis with recombinant tissue-type plasminogen activator (rt-PA). However, the intermittent onset of episodic memory and orientation disorder still occurred. No diffusion restriction was indicated by magnetic resonance imaging (MRI), and subclinical seizures were frequently found by electroencephalogram (EEG). Rapid plasma reagin (RPR) test of serum showed positive results for syphilis. Analysis of cerebrospinal fluid (CSF) revealed elevated leukocyte count and protein level. RPR test, Treponema pallidum particle agglutination (TPPA) assay, and Treponema pallidum antibody (TP-Ab) in CSF showed positive results, and the anti-NMDAR antibodies were positive in CSF and serum. Finally, the patient was diagnosed with neurosyphilis with a positive anti-NMDAR antibody. The clinical symptoms were improved, and the leukocyte count in CSF was reduced after treatment with intravenous penicillin G and levetiracetam. This case suggests that in cases with positive results for neurosyphilis and NMDAR antibodies, the proper treatment has to be decided based on all of the available clinical and diagnostic testing data.
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spelling doaj.art-42b0910d634b45769111c39a894bd7172023-05-18T07:20:19ZengFrontiers Media S.A.Frontiers in Neurology1664-22952023-05-011410.3389/fneur.2023.11646051164605Neurosyphilis with positive anti-N-methyl-D-aspartate receptor antibody: a case reportZhu Sha0Shi Jing1Gao Feng2Gao Feng3Hao Hongjun4Liu Xianzeng5Department of Neurology, Peking University International Hospital, Beijing, ChinaDepartment of Neurology, Peking University International Hospital, Beijing, ChinaDepartment of Neurology, Peking University International Hospital, Beijing, ChinaDepartment of Radiology, Peking University First Hospital, Beijing, ChinaDepartment of Radiology, Peking University First Hospital, Beijing, ChinaDepartment of Neurology, Peking University International Hospital, Beijing, ChinaA case of neurosyphilis with a positive anti-N-methyl-D-aspartate receptor (NMDAR) antibody was reported. A 54-year-old man who presented with acute memory deficits was admitted to our hospital. Acute ischemic stroke (AIS) was initially considered, and he was prescribed intravenous thrombolysis with recombinant tissue-type plasminogen activator (rt-PA). However, the intermittent onset of episodic memory and orientation disorder still occurred. No diffusion restriction was indicated by magnetic resonance imaging (MRI), and subclinical seizures were frequently found by electroencephalogram (EEG). Rapid plasma reagin (RPR) test of serum showed positive results for syphilis. Analysis of cerebrospinal fluid (CSF) revealed elevated leukocyte count and protein level. RPR test, Treponema pallidum particle agglutination (TPPA) assay, and Treponema pallidum antibody (TP-Ab) in CSF showed positive results, and the anti-NMDAR antibodies were positive in CSF and serum. Finally, the patient was diagnosed with neurosyphilis with a positive anti-NMDAR antibody. The clinical symptoms were improved, and the leukocyte count in CSF was reduced after treatment with intravenous penicillin G and levetiracetam. This case suggests that in cases with positive results for neurosyphilis and NMDAR antibodies, the proper treatment has to be decided based on all of the available clinical and diagnostic testing data.https://www.frontiersin.org/articles/10.3389/fneur.2023.1164605/fullneurosyphilisencephalitisanti-N-methyl-D-aspartate receptor (anti-NMDAR)epilepsycase report
spellingShingle Zhu Sha
Shi Jing
Gao Feng
Gao Feng
Hao Hongjun
Liu Xianzeng
Neurosyphilis with positive anti-N-methyl-D-aspartate receptor antibody: a case report
Frontiers in Neurology
neurosyphilis
encephalitis
anti-N-methyl-D-aspartate receptor (anti-NMDAR)
epilepsy
case report
title Neurosyphilis with positive anti-N-methyl-D-aspartate receptor antibody: a case report
title_full Neurosyphilis with positive anti-N-methyl-D-aspartate receptor antibody: a case report
title_fullStr Neurosyphilis with positive anti-N-methyl-D-aspartate receptor antibody: a case report
title_full_unstemmed Neurosyphilis with positive anti-N-methyl-D-aspartate receptor antibody: a case report
title_short Neurosyphilis with positive anti-N-methyl-D-aspartate receptor antibody: a case report
title_sort neurosyphilis with positive anti n methyl d aspartate receptor antibody a case report
topic neurosyphilis
encephalitis
anti-N-methyl-D-aspartate receptor (anti-NMDAR)
epilepsy
case report
url https://www.frontiersin.org/articles/10.3389/fneur.2023.1164605/full
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