raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:727803

Isolated global cerebellar hypoplasia

Synonyms: Isolated generalized cerebellar hypoplasia

Type
Morphological anomaly
Group
Disorder
Inheritance
Unknown
Age of onset
Infancy, Neonatal
Status
active

A rare isolated cerebellar malformation characterized by a normal shape but reduced volume of the cerebellar vermis and hemispheres with no other neurological anomalies or extracerebral congenital malformations. The majority of patients present with impaired ambulation, global developmental delay, with or without intellectual disability. Other signs might include hypotonia, truncal, appendicular and gait ataxia, as well as oculomotor abnormalities.

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Names in Orphadata languages

9 of 12 languages
LangNameSynonyms
enIsolated global cerebellar hypoplasiaIsolated generalized cerebellar hypoplasia
frHypoplasie globale isolée du cerveletHypoplasie généralisée isolée du cervelet
deIsolierte globale zerebelläre HypoplasieIsolierte generalisierte Kleinhirnhypoplasie
esHipoplasia cerebelosa global aisladaHipoplasia cerebelosa generalizada aislada
itIpoplasia cerebellare globale isolataIpoplasia cerebellare generalizzata isolata
nlGeïsoleerde algehele cerebellaire hypoplasieGeïsoleerde gegeneraliseerde cerebellaire hypoplasie
ptIsolated global cerebellar hypoplasia
plIsolated global cerebellar hypoplasia= en
csIsolated global cerebellar hypoplasia= en
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Cross-references

qualifier = Orphanet mapping relation

No cross-references in this release.

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Classification

Preferential parent (Orphanet linearisation):

Parents in the classifications (1):

No children.

4

Genes

0 direct

Orphanet records no gene directly on this code.

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Prevalence and incidence

1 record
TypeClassValueAreaQualificationValidationSource
Point prevalenceUnknown—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.

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HPO phenotypes

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

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Sources for this card