raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:730286

Megalencephaly-postaxial polydactyly-ventriculomegaly-neuroblastoma syndrome

Type
Malformation syndrome
Group
Disorder
Inheritance
Autosomal dominant
Status
active

Orphadata ships no English definition for this code.

1

Names in Orphadata languages

9 of 12 languages
LangNameSynonyms
enMegalencephaly-postaxial polydactyly-ventriculomegaly-neuroblastoma syndrome
frSyndrome de mégalencéphalie-polydactylie postaxiale-ventriculomégalie-neuroblastome
deMegalenzephalie-postaxiale Polydaktylie-Ventrikulomegalie-Neuroblastom-Syndrom
esSíndrome de megalencefalia-polidactilia postaxial-ventriculomegalia-neuroblastoma
itSindrome megalencefalia-polidattilia postassiale-ventricolomegalia-neuroblastoma
nlMegalencefalie - postaxiale polydactylie - ventriculomegalie - neuroblastoom-syndroom
ptMegalencephaly-postaxial polydactyly-ventriculomegaly-neuroblastoma syndrome
plMegalencephaly-postaxial polydactyly-ventriculomegaly-neuroblastoma syndrome
csMegalencephaly-postaxial polydactyly-ventriculomegaly-neuroblastoma syndrome
2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM620748Evalidated

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
MYCNDisease-causing germline mutation(s) (gain of function) inAssessedHGNC:7559ENSG000001343231648402p24.3MYCN proto-oncogene, bHLH transcription factor37710961[PMID]
5

Prevalence and incidence

0 records

No prevalence record in this release.

6

HPO phenotypes

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

7

Sources for this card