raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:658595

DNMT3A-related microcephalic dwarfism

Synonyms: HESJAS · Heyn-Sproul-Jackson syndrome · Microcephaly-short stature-intellectual disability syndrome

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

Orphadata ships no English definition for this code.

1

Names in Orphadata languages

10 of 12 languages
LangNameSynonyms
enDNMT3A-related microcephalic dwarfismHESJAS · Heyn-Sproul-Jackson syndrome · Microcephaly-short stature-intellectual disability syndrome
frNanisme microcéphalique associé à DNMT3AHESJAS · Syndrome de Heyn-Sproul-Jackson · Syndrome de microcéphalie-petite taille-déficience intellectuelle
deKleinwuchs, mikrozephaler, DNMT3A-assoziierterHESJAS · Heyn-Sproul-Jackson-Syndrom · Mikrozephalie-Kleinwuchs-Intelligenzminderung-Syndrom
esDisplasia microcefálica asociada a DNMT3ASíndrome de Heyn-Sproul-Jackson · Síndrome de microcefalia-talla baja-discapacidad intelectual
itNanismo microcefalico correlato a DNMT3AHESJAS · Sindrome di Heyn-Sproul-Jackson · Sindrome microcefalia-bassa statura-disabilità intellettiva
nlDNMT3A-gerelateerde microcefale dwerggroeiHESJAS · Microcefalie - kleine gestalte - intellectuele achterstand-syndroom · Syndroom van Heyn-Sproul-Jackson
ptNanismo microcefálico DNMT3A-relacionadoHESJAS · Síndrome Heyn-Sproul-Jackson · Síndrome de microcefalia-baixa estatura-perturbação do desenvolvimento intelectual
plKarłowatość mikrocefaliczna związana z DNMT3A= en
csMikrocefalický dwarfismus asociovaný s DNMT3A= en
ukМікроцефальна карликовість, повязана з DNMT3AHESJAS · Синдром Хейна-Спроула-Джексона · Синдром мікроцефалії - низький зріст - розумова відсталість
2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM618724Evalidated
ICD-10Q87.1NTBTattributedvalidated
MONDO0032882Evalidated
MONDO32882Evalidated
UMLSC5231475Evalidated

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

1 direct
GeneAssociationStatusHGNCEnsemblOMIMLocusNameSource of validation
DNMT3ADisease-causing germline mutation(s) (gain of function) inAssessedHGNC:2978ENSG000001197726027692p23.3DNA methyltransferase 3 alpha37517811[PMID]
5

Prevalence and incidence

2 records
TypeClassValueAreaQualificationValidationSource
Cases/families3 casesWorldwideCase(s)Validated30478443[PMID]
Point prevalence<1 / 1 000 000—WorldwideClass onlyValidated30478443[PMID]_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

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

7

Sources for this card