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Longitudinal brain morphology in anti-NMDA receptor encephalitis: a case report with controls.


ABSTRACT: BACKGROUND:Anti-N-methyl-D-aspartate-receptor (NMDAR) encephalitis is a severe autoimmune condition, which typically affects young females. The long-term clinical consequences and brain morphology changes after anti-NMDAR encephalitis are not well known. CASE PRESENTATION:We present clinical and neuroimaging follow-up data on a 25-year female patient with typically presenting anti-NMDAR encephalitis. Longitudinal analyses of brain morphology were done using 3?T structural magnetic resonance imaging (sMRI) and Freesurfer analysis at the time of diagnosis and after symptomatic remission. The presented case attained good functional recovery after standard immunoglobulin-corticosteroid treatment but elevated serum NMDAR antibody levels persisted. The patient had no symptomatic relapses during a 3-year clinical follow-up. In the baseline brain sMRI scan there were no marked volume changes. However, a follow-up sMRI after 9?months indicated clear volume reductions in frontal cortical regions compared to matched controls with identical sMRI scans. CONCLUSIONS:This case report of anti-NMDAR encephalitis suggests that despite clinical recovery long-term brain morphological changes can develop in the frontal cortex. Longer clinical and imaging follow-up studies are needed to see whether these frontocortical alterations are fully reversible and if not, can they result in trait vulnerabilities for e.g. neuropsychiatric disorders.

SUBMITTER: Laurikainen H 

PROVIDER: S-EPMC6511133 | biostudies-literature | 2019 May

REPOSITORIES: biostudies-literature

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Longitudinal brain morphology in anti-NMDA receptor encephalitis: a case report with controls.

Laurikainen Heikki H   Isotupa Iina I   Nyman Mikko M   Ilonen Tuula T   Nummelin Teija T   Salokangas Raimo K R RKR   Hietala Jarmo J  

BMC psychiatry 20190510 1


<h4>Background</h4>Anti-N-methyl-D-aspartate-receptor (NMDAR) encephalitis is a severe autoimmune condition, which typically affects young females. The long-term clinical consequences and brain morphology changes after anti-NMDAR encephalitis are not well known.<h4>Case presentation</h4>We present clinical and neuroimaging follow-up data on a 25-year female patient with typically presenting anti-NMDAR encephalitis. Longitudinal analyses of brain morphology were done using 3 T structural magnetic  ...[more]

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