raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:217253

NMDA receptor encephalitis

Synonyms: Limbic encephalitis with N-methyl-D-aspartate receptor antibodies · Limbic encephalitis with NMDA receptor antibodies · N-methyl-D-aspartate receptor encephalitis · NMDARE · anti-NMDA receptor encephalitis

Type
Disease
Group
Disorder
Inheritance
Not applicable
Age of onset
All ages
Status
active

A rare limbic encephalitis characterized by the presence of autoantibodies against NMDA receptors in serum and cerebrospinal fluid. It may be of paraneoplastic (most commonly associated with ovarian teratoma) or non-paraneoplastic origin and is life-threatening but potentially treatable. Patients present with acute behavioral change, psychosis, and catatonia, rapidly progressing to seizures, memory deficit, dyskinesias, speech problems, and autonomic and breathing dysregulation.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enNMDA receptor encephalitisLimbic encephalitis with N-methyl-D-aspartate receptor antibodies · Limbic encephalitis with NMDA receptor antibodies · N-methyl-D-aspartate receptor encephalitis · NMDARE · anti-NMDA receptor encephalitis
frEncéphalite anti-NMDArEncéphalite limbique avec anticorps anti-récepteur N-méthyl-D-aspartate · Encéphalite limbique avec anticorps anti-récepteur NMDA · Encéphalite limbique à anticorps anti-NMDAr · Encéphalite à anticorps anti-récepteur au N-méthyl-D-aspartate · Encéphalite à anticorps antirécepteur NMDA · Encéphalite NMDAr
deNMDA-Rezeptor-EnzephalitisAnti-NMDA-Rezeptor-Enzephalitis · Limbische Enzephalitis mit NMDA-Rezeptor-Antikörpern · Limbische Enzephalitis mit assoziierten NMDA (N-Methyl-D-Aspartat)-Rezeptor-Antikörpern · N-Methyl-D-Aspartat-Rezeptor-Enzephalitis · NMDARE
esEncefalitis del receptor NMDAEncefalitis anti-receptor NMDA · Encefalitis del receptor N-metil-D-aspartato · Encefalitis límbica con anticuerpos anti-receptor N-metil-D-aspartato · Encefalitis límbica con anticuerpos anti-receptor NMDA · NMDARE
itEncefalite limbica con anticorpi contro il recettore NMDAEncefalite correlata al recettore N-metil-D-aspartasi · Encefalite correlata al recettore anti-NMDA · Encefalite limbica associata ad anticorpi anti-recettore N-metil-D-aspartasi · Encefalite limbica associata ad anticorpi anti-recettore NMDA · NMDARE
nlNMDA-receptor-encefalitisAnti-NMDA-receptor-encefalitis · Limbische encefalitis met N-methyl-D-aspartaatreceptor-antilichamen · Limbische encefalitis met NMDA-receptor-antilichamen · N-methyl-D-aspartaatreceptor-encefalitis · NMDARE
ptEncefalite recetor NMDAEncefalite límbica com anticorpos recetor N-metil-D-aspartato · Encefalite límbica com anticorpos recetor NMDA · Encefalite recetor N-metil-D-aspartato · Encefalite recetor anti-NMDA · NMDARE
plZapalenie układu limbicznego z przeciwciałami przeciwko receptorom NMDAZapalenie układu limbicznego z przeciwciałami przeciwko receptorom N-metylo-D-asparaginowym · Zapalenie mózgu związane z receptorem NMDA
csLimbická encefalitida s protilátkami proti NMDA receptorůmLimbická encefalitida s protilátkami proti N-methyl-D-aspartát receptorům
ukNMDA-рецепторний енцефалітанти-NMDA-рецепторний енцефаліт · Лімбічний енцефаліт з антитілами до NMDA-рецепторів · Лімбічний енцефаліт з антитілами до N-метил-D-аспартатних рецепторів · NMDARE · N-метил-D-аспартат-рецепторний енцефаліт
zh边缘脑炎伴NMDA受体抗体边缘脑炎伴N-甲基-D-天冬氨酸受体抗体
trNMDA reseptör antikorları ile seyreden limbik ensefalitN-metil-D-aspartat reseptör antikorları ile seyreden limbik ensefalit

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
ICD-10G13.1NTBTattributedvalidated
MONDO0021081Evalidated
MeSHD060426Evalidated
UMLSC5700343Evalidated

E exact · NTBT this ORPHAcode is narrower than the target · BTNT broader than the target · ND not decided.

3

Classification

Preferential parent (Orphanet linearisation):

Parents in the classifications (1):

No children.

4

Genes

0 direct

Orphanet records no gene directly on this code.

5

Prevalence and incidence

1 record
TypeClassValueAreaQualificationValidationSource
Point prevalenceUnknown—WorldwideClass onlyNot yet validatedORPHANET

Value is Orphadata's ValMoy: the mean estimate per 100 000 for prevalence and incidence, the number of cases or families for case reports.

6

HPO phenotypes

53 annotations · validated 2021-12-09
HPOTerm (as annotated by Orphanet)Diagnostic
Very frequent (99-80%)
HP:0032264Anti-NMDA receptor antibody positivity
HP:0000708Atypical behavior
HP:0032266CSF anti-NMDA receptor antibody positivity
HP:0012229CSF pleocytosis
HP:0001289Confusion
HP:0002354Memory impairment
HP:0001250Seizure
HP:0000736Short attention span
Frequent (79-30%)
HP:0012332Abnormal autonomic nervous system physiology
HP:0000739Anxiety
HP:0000746Delusion
HP:0002014Diarrhea
HP:0100660Dyskinesia
HP:0011289EEG with temporal sharp slow waves
HP:0001945Fever
HP:0000738Hallucinations
HP:0002315Headache
HP:0100785Insomnia
HP:0004305Involuntary movements
HP:0100754Mania
HP:0012226Ovarian teratoma
HP:0002013Vomiting
Occasional (29-5%)
HP:0000733Abnormal repetitive mannerisms
HP:0012333Abnormal sudomotor regulation
HP:0000713Agitation
HP:5200321Amplification of sexual behavior
HP:0002072Chorea
HP:0001266Choreoathetosis
HP:0031258Delirium
HP:0000716Depression
HP:0001332Dystonia
HP:0003781Excessive salivation
HP:0007359Focal-onset seizure
HP:0002197Generalized-onset seizure
HP:0002463Language impairment
HP:0002371Loss of speech
HP:0002300Mutism
HP:0001336Myoclonus
HP:0008763No social interaction
HP:0010553Oculogyric crisis
HP:0002179Opisthotonus
HP:0002310Orofacial dyskinesia
HP:0001278Orthostatic hypotension
HP:0012173Orthostatic tachycardia
HP:0000709Psychosis
HP:0002063Rigidity
HP:0002133Status epilepticus
Very rare (<4-1%)
HP:0012189Hodgkin lymphoma
HP:0100013Neoplasm of the breast
HP:0100526Neoplasm of the lung
HP:0100521Neoplasm of the thymus
HP:0003006Neuroblastoma
HP:0100616Testicular teratoma

Run the differential on the 8 obligate / very frequent terms

Annotation source: 31085562 [PMID]_26899887[PMID]

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Sources for this card