raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:411986

Early-onset epileptic encephalopathy-cortical blindness-intellectual disability-facial dysmorphism syndrome

Synonyms: Epilepsy-cortical blindness-intellectual disability-facial dysmorphism syndrome

Type
Malformation syndrome
Group
Disorder
Inheritance
Autosomal recessive
Age of onset
Infancy
Status
active

Early-onset epileptic encephalopathy-cortical blindness-intellectual disability-facial dysmorphism syndrome is a rare, syndromic intellectual disability syndrome characterized by cortical blindness, different types of seizures, intellectual disability with limited or absent speech, and dysmorphic facial features. Brain imaging typically shows mild pontine hypoplasia, hypoplasia of the corpus callosum and atrophy in the occipital region.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enEarly-onset epileptic encephalopathy-cortical blindness-intellectual disability-facial dysmorphism syndromeEpilepsy-cortical blindness-intellectual disability-facial dysmorphism syndrome
frSyndrome d'encéphalopathie épileptique infantile précoce-cécité corticale-déficience intellectuelle-dysmorphie facialeSyndrome d'épilepsie-cécité corticale-déficience intellectuelle-dysmorphie faciale
deFrühinfantile epileptische Enzephalopathie-kortikale Blindheit-Intelligenzminderung-Gesichtsdysmorphie-SyndromEpilepsie-kortikale Blindheit-Intelligenzminderung-Gesichtsdysmorphie-Syndrom
esSíndrome de encefalopatía epiléptica-ceguera cortical-discapacidad intelectual-dismorfia facial de inicio precozSíndrome de epilepsia-ceguera cortical-discapacidad intelecutal-dismorfia facial
itSindrome da encefalopatia epilettica ad esordio precoce, cecità corticale, disabilità intellettiva e dismorfismi faccialiSindrome epilessia-cecità corticale-disabilità cognitiva-dismorfismi facciali
nlVroeg optredende epileptische encefalopathie - corticale blindheid - intellectuele achterstand - faciale dysmorfie-syndroomEpilepsie - corticale blindheid - intellectuele achterstand - faciale dysmorfie-syndroom
ptSíndrome de encefalopatia epilética de início precoce-cegueira cortical-perturbação do desenvolvimento intelectual-dismorfia facial
plZespół encefalopatia padaczkowa o wczesnym początku-ślepota korowa-niepełnosprawność intelektualna-dysmorfia twarzyZespół padaczka ślepota korowa-niepełnosprawność intelektualna-dysmorfia twarzy
csSyndrom zahrnující epileptickou encefalopatii s časným nástupem, kortikální slepotu, mentální retardaci a faciální dysmorfismusSyndrom zahrnující epilepsii, kortikální slepotu, mentální retardaci a faciální dysmorfismus
ukСиндром ранньої епілептичної енцефалопатії-кортікальної сліпоти-інтелектуальної недостатності- дизморфізму обличчяСиндром епілепсії-кортикальної сліпоти-інтелектуальної недостатності- дисморфізму обличчя
zhEarly-onset epileptic encephalopathy-cortical blindness-intellectual disability-facial dysmorphism syndrome癫痫-皮质盲-智力障碍-面部畸形综合征
trErken başlangıçlı epileptik ensefalopati-kortikal körlük-zihinsel yetersizlik-yüz dismorfizm sendromuEpilepsi-kortikal körlük-zihinsel yetersizlik-fasiyal dismorfizm sendromu

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM615859Evalidated
ICD-10G40.4NTBTattributedvalidated
MONDO0014371Evalidated
UMLSC4750952Evalidated

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 (5):

No children.

4

Genes

1 direct
GeneAssociationStatusHGNCEnsemblOMIMLocusNameSource of validation
DOCK7Disease-causing germline mutation(s) (loss of function) inAssessedHGNC:19190ENSG000001166416157301p31.3dedicator of cytokinesis 724814191[PMID]
5

Prevalence and incidence

2 records
TypeClassValueAreaQualificationValidationSource
Cases/families3 casesWorldwideCase(s)Validated24814191[PMID]
Point prevalence<1 / 1 000 000—WorldwideClass onlyValidatedORPHANET_24814191[PMID]

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

36 annotations · validated 2019-12-04
HPOTerm (as annotated by Orphanet)Diagnostic
Frequent (79-30%)
HP:0000463Anteverted nares
HP:0000455Broad nasal tip
HP:0100704Cerebral visual impairment
HP:0010818Generalized tonic seizure
HP:0002079Hypoplasia of the corpus callosum
HP:0012110Hypoplasia of the pons
HP:0001249Intellectual disability
HP:0000294Low anterior hairline
HP:0010841Multifocal epileptiform discharges
HP:0012105Occipital cortical atrophy
HP:0000629Periorbital fullness
HP:0002465Poor speech
HP:0000817Reduced eye contact
HP:0000506Telecanthus
Occasional (29-5%)
HP:0000733Abnormal repetitive mannerisms
HP:0040159Abnormal spaced incisors
HP:0000528Anophthalmia
HP:0010819Atonic seizure
HP:0000414Bulbous nose
HP:0000232Everted lower lip vermilion
HP:0002384Focal impaired awareness seizure
HP:0002121Generalized non-motor (absence) seizure
HP:0001252Hypotonia
HP:0002521Hypsarrhythmia
HP:0002540Inability to walk
HP:0012469Infantile spasms
HP:0009748Large earlobe
HP:0000527Long eyelashes
HP:0001336Myoclonus
HP:0000341Narrow forehead
HP:0009904Prominent ear helix
HP:0000426Prominent nasal bridge
HP:0000322Short philtrum
HP:0000664Synophrys
HP:0000574Thick eyebrow
HP:0012471Thick vermilion border

Annotation source: 24814191[PMID]

7

Sources for this card