raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:163681

CNTNAP2-related developmental and epileptic encephalopathy

Synonyms: CDFE syndrome · CDFES · CNTNAP2-related DEE · Cortical dysplasia-focal epilepsy syndrome

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

A rare, genetic, syndromic neurodevelopmental disorder characterized by moderate to mostly severe intellectual disability, speech impairment with normal or mildly delayed motor development and early-onset seizures often accompanied by developmental regression. Autistic behavior and stereotypic movements are common.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enCNTNAP2-related developmental and epileptic encephalopathyCDFE syndrome · CDFES · CNTNAP2-related DEE · Cortical dysplasia-focal epilepsy syndrome
frEncéphalopathie épileptique et développementale associée à CNTNAP2Syndrome de dysplasie corticale-épilepsie focale
deCNTNAP2-assoziierte entwicklungsbedingte und epileptische EnzephalopathieCDFE-Syndrom · CDFES · CNTNAP2-bezogene DEE · Kortikale Dysplasie-fokale Epilepsie-Syndrom
esEncefalopatía epiléptica y del desarrollo asociada a CNTNAP2CDFES · Síndrome CDFE · Síndrome de displasia cortical-epilepsia focal
itEncefalopatia epilettica e dello sviluppo correlata a CNTNAP2
nlCNTNAP2-gerelateerde ontwikkelingsachterstand en epileptische encefalopathieCDFE-syndroom · CDFES · CNTNAP2-gerelateerde DEE · Corticale dysplasie - focale epilepsie-syndroom
ptEncefalopatia epiléptica e do desenvolvimento CNTNAP2-relacionadaSíndrome de displasia cortical-epilepsia focal
plDysplazja kory mózgowej z padaczką ogniskową= en
csFokální epilepsie na podkladě kortikální dysplázie= en
ukCNTNAP2-залежна епілептична енцефалопатія розвиткуСиндром CDFE · CDFES · DEE, повязані з CNTNAP2 · Синдром фокальної епілепсії з кортикальною дисплазією
zh皮质发育不良型癫痫综合症CDFE综合征
trKortikal displazi-fokal epilepsi sendromuCDFES · CDFE sendromu

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM610042Evalidated
ICD-10Q04.8NTBTattributedvalidated
MONDO0012400Evalidated
UMLSC5575702Evalidated

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

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Classification

Preferential parent (Orphanet linearisation):

Parents in the classifications (2):

No children.

Codes that Orphanet moved or referred to this one:

4

Genes

1 direct
GeneAssociationStatusHGNCEnsemblOMIMLocusNameSource of validation
CNTNAP2Disease-causing germline mutation(s) inAssessedHGNC:13830ENSG000001744696045697q35-q36.1contactin associated protein 216571880[PMID]
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Prevalence and incidence

2 records
TypeClassValueAreaQualificationValidationSource
Point prevalenceUnknown—WorldwideClass onlyNot yet validatedORPHANET
Cases/families28 casesWorldwideCase(s)ORPHANET

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

49 annotations · validated 2021-11-25
HPOTerm (as annotated by Orphanet)Diagnostic
Very frequent (99-80%)
HP:0012757Abnormal neuron morphology
HP:0002269Abnormality of neuronal migration
HP:0031936Delayed ability to walk
HP:0000750Delayed speech and language development
HP:0007359Focal-onset seizure
HP:0001250Seizure
Frequent (79-30%)
HP:0007334Bilateral tonic-clonic seizure with focal onset
HP:0011198EEG with generalized epileptiform discharges
HP:0012001EEG with generalized polyspikes
HP:0010845EEG with generalized slow activity
HP:0001263Global developmental delay
HP:0010864Intellectual disability, severe
HP:0011182Interictal epileptiform activity
HP:0001268Mental deterioration
HP:0001270Motor delay
HP:0002465Poor speech
HP:0007064Progressive language deterioration
Occasional (29-5%)
HP:0025160Abnormal temper tantrums
HP:0001344Absent speech
HP:0000718Aggressive behavior
HP:0001284Areflexia
HP:0001251Ataxia
HP:0000708Atypical behavior
HP:0000717Autism
HP:0006855Cerebellar vermis atrophy
HP:0100021Cerebral palsy
HP:0000494Downslanted palpebral fissures
HP:0011193EEG with focal spikes
HP:0011968Feeding difficulties
HP:0002240Hepatomegaly
HP:0000752Hyperactivity
HP:0000316Hypertelorism
HP:0001265Hyporeflexia
HP:0001252Hypotonia
HP:0002342Intellectual disability, moderate
HP:0004879Intermittent hyperventilation
HP:0000744Low frustration tolerance
HP:0002061Lower limb spasticity
HP:0000639Nystagmus
HP:0001513Obesity
HP:0006970Periventricular leukomalacia
HP:0001761Pes cavus
HP:0100258Preaxial polydactyly
HP:0000826Precocious puberty
HP:0010863Receptive language delay
HP:0000817Reduced eye contact
HP:0000742Self-mutilation
HP:0012166Skin-picking
HP:0012171Stereotypical hand wringing

Run the differential on the 6 obligate / very frequent terms

Annotation source: 24916270[PMID]_27439707[PMID]

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Sources for this card