raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:251679

Astroblastoma

Type
Disease
Group
Disorder
Inheritance
Not applicable
Age of onset
Adolescent, Adult, Childhood, Infancy
Status
active

A rare central nervous system tumor characterized by a well circumscribed astrocytic neoplasm, typically arising peripherally in the frontal or parietal lobes. It usually presents in infants and young adults with symptoms of increased intracranial pressure, epileptic seizures, and/or neurological deficits. At the histomolecular level, it exhibits astroblastic perivascular pseudorosettes and positive immunostaining for GFAP and EMA. It carries fusion of <i>MN1</i> with various partners (the most common being <i>BEND2</i> and <i>CXXC5</i>) and exhibits a specific astroblastoma, MN1-altered DNA methylation class.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enAstroblastoma
frAstroblastome
deAstroblastom
esAstroblastoma
itAstroblastoma
nlAstroblastoom
ptAstroblastoma
plGwiaździak zarodkowy
csAstroblastom
ukАстробластома
zh星形母细胞瘤
trAstroblastoma

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
ICD-10C71.9NTBTindexvalidated
ICD-112A00.4Especificvalidated
MONDO0016707Evalidated
UMLSC0334587Evalidated
GARD10635Evalidated
MedDRA10079366Evalidated

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
MN1Part of a fusion gene inAssessedHGNC:7180ENSG0000016918415610022q12.1MN1 proto-oncogene, transcriptional regulator31111274[PMID]
5

Prevalence and incidence

1 record
TypeClassValueAreaQualificationValidationSource
Annual incidence<1 / 1 000 0000.02 / 100 000EuropeValue and classValidatedRARECARE surveillance of rare cancers in Europe[OTHER]

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