raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:726695

Developmental delay-vision anomalies-hand stereotypies-intellectual disability syndrome

Synonyms: HECW2-related neurodevelopmental disorder

Type
Malformation syndrome
Group
Disorder
Inheritance
Autosomal dominant
Age of onset
Infancy, Neonatal
Status
active

Orphadata ships no English definition for this code.

1

Names in Orphadata languages

9 of 12 languages
LangNameSynonyms
enDevelopmental delay-vision anomalies-hand stereotypies-intellectual disability syndromeHECW2-related neurodevelopmental disorder
frSyndrome de retard du développement-anomalies visuels- stéréotypies des mains-déficience intellectuelleTrouble du neurodéveloppement associé à HECW2
deEntwicklungsverzögerung-Sehstörungen-stereotype Handbewegungen-Intelligenzminderung-SyndromHECW2-assoziierte neurologische Entwicklungsstörung
esSíndrome de retraso del desarrollo-anomalías visuales-movimientos estereotipados de las manos-discapacidad intelectualTrastorno del neurodesarrollo asociado al gen HECW2
itSindrome ritardo dello sviluppo-anomalie della vista-stereotipie delle mani-disabilità intellettivaMalattia del neurosviluppo correlata a HECW2
nlOntwikkelingsachterstand - afwijkingen van zicht - stereotiepe handbewegingen - intellectuele achterstand-syndroomHECW2-gerelateerde neurologische ontwikkelingsstoornis
ptDevelopmental delay-vision anomalies-hand stereotypies-intellectual disability syndrome
plDevelopmental delay-vision anomalies-hand stereotypies-intellectual disability syndrome= en
csDevelopmental delay-vision anomalies-hand stereotypies-intellectual disability syndrome= en
2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM617268Evalidated

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
HECW2Disease-causing germline mutation(s) inAssessedHGNC:29853ENSG000001384116172452q32.3HECT, C2 and WW domain containing E3 ubiquitin protein ligase 234321324[PMID]
5

Prevalence and incidence

2 records
TypeClassValueAreaQualificationValidationSource
Cases/families35 casesWorldwideCase(s)ValidatedORPHANET
Point prevalence<1 / 1 000 000—WorldwideClass onlyValidatedORPHANET

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

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

7

Sources for this card