raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:306558

Primary microcephaly-epilepsy-permanent neonatal diabetes syndrome

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

Primary microcephaly-epilepsy-permanent neonatal diabetes syndrome is a rare, genetic, neurologic disease characterized by congenital microcephaly, severe, early-onset epileptic encephalopathy (manifesting as intractable, myoclonic and/or tonic-clonic seizures), permanent, neonatal, insulin-dependent diabetes mellitus, and severe global developmental delay. Muscular hypotonia, skeletal abnormalities, feeding difficulties, and dysmorphic facial features (including narrow forehead, anteverted nares, small mouth with deep philtrum, tented upper lip vermilion) are frequently associated. Brain MRI reveals cerebral atrophy with cortical gyral simplification and aplasia/hypoplasia of the corpus callosum.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enPrimary microcephaly-epilepsy-permanent neonatal diabetes syndrome
frSyndrome de microcéphalie primaire-épilepsie-diabète néonatal permanent
dePrimäre Mikrozephalie-Epilepsie-permanenter neonataler Diabetes-Syndrom
esSíndrome de microcefalia primaria-epilepsia-diabetes neonatal permanente
itSindrome da microcefalia primitiva, epilessia, diabete neonatale permanente
nlPrimaire microcefalie - epilepsie - permanente neonatale diabetes-syndroom
ptSíndrome de microcefalia primária – epilepsia – diabetes neonatal permanente
plZespół małogłowie pierwotne - padaczka - utrwalona cukrzyca noworodków
csSyndrom zahrnující primární mikrocefalii, epilepsii a permanentní neonatální diabetes
ukСиндром первинної мікроцефалії-епілепсії-перманентного неонатального діабету
zh原发性小头性癫痫-永久性新生儿糖尿病综合征
trPrimer mikrosefali-epilepsi-kalıcı yenidoğan diyabet sendromu

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM614231BTNTvalidated
OMIM619278BTNTvalidated
ICD-10Q87.8NTBTattributedvalidated
ICD-118A60.9NTBTattributedvalidated
UMLSC5190632Evalidated

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 (4):

No children.

4

Genes

2 direct
GeneAssociationStatusHGNCEnsemblOMIMLocusNameSource of validation
IER3IP1Disease-causing germline mutation(s) inAssessedHGNC:18550ENSG0000013404960938218q21.1immediate early response 3 interacting protein 121835305[PMID]
YIPF5Disease-causing germline mutation(s) inAssessedHGNC:24877ENSG000001458176114835q31.3Yip1 domain family member 533164987[PMID]
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Prevalence and incidence

2 records
TypeClassValueAreaQualificationValidationSource
Cases/families8 casesWorldwideCase(s)Validated28711742[PMID]
Point prevalence<1 / 1 000 000—WorldwideClass onlyValidatedORPHANET_28711742[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

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

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Sources for this card