raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:364063

Infantile epileptic-dyskinetic encephalopathy

Type
Disease
Group
Disorder
Inheritance
X-linked recessive
Age of onset
Infancy, Neonatal
Status
active

A rare monogenic disease with epilepsy characterized by developmental delay and infantile spasms in the first months of life, followed by chorea and generalized dystonia and progressing to quadriplegic dyskinesia, recurrent status dystonicus, intractable focal epilepsy and severe intellectual disability.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enInfantile epileptic-dyskinetic encephalopathy
frEncéphalopathie épileptique-dyskinétique infantile
deEnzephalopathie, epileptisch-dyskinetische infantile
esEncefalopatía epiléptica-discinética infantil
itEncefalopatia epilettica-discinetica infantile
nlInfantiele epileptische-dyskinetische encefalopathie
ptEpilepsia-discinésia-encefalopatia da infância
plDziecięca encefalopatia epileptyczno-dyskinetyczna
csKojenecká epilepticko-dyskinetická encefalopatie
ukЕпілептично-дискінетична енцефалопатія раннього дитячого віку
zh小儿癫痫性运动障碍性脑病
trİnfantil epileptik-diskinetik ensefalopati

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM308350NTBTvalidated
ICD-10G40.4NTBTattributedvalidated
MONDO0018226Evalidated
MeSHC567924Evalidated
UMLSC4552072Evalidated

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 (2):

No children.

4

Genes

1 direct
GeneAssociationStatusHGNCEnsemblOMIMLocusNameSource of validation
ARXDisease-causing germline mutation(s) (loss of function) inAssessedHGNC:18060ENSG00000004848300382Xp21.3aristaless related homeobox17664401[PMID]
5

Prevalence and incidence

0 records

No prevalence record in this release.

6

HPO phenotypes

Orphanet has no HPO annotation for this code in this release.

7

Sources for this card