raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:86823

Lissencephaly with cerebellar hypoplasia

Synonyms: LCH

Type
Clinical group
Group
Group of disorders
Status
active

Lissencephaly with cerebellar hypoplasia (LCH) is a variant form of lissencephaly and involves a heterogeneous group of cortical malformations without severe congenital microcephaly (>-3 SD). LCH is characterized by cerebellar underdevelopment ranging from vermian hypoplasia to total aplasia with classical or cobblestone lissencephaly. The phenotypic features of LCH include small head circumference (between -2 and -3 standard deviations (SD) forage) at birth and postnatally, moderate to severe intellectual disability, hypotonia and spasticity. Seizures are often observed and infantile spasms have been reported in some rare cases. LCH has been classified into six subgroups according to neuroradiographic properties and are classified LCH type A to F.

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Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enLissencephaly with cerebellar hypoplasiaLCH
frLissencéphalie avec hypoplasie cérébelleuseLHC
deLissenzephalie mit zerebellärer Hypoplasie= en
esLisencefalia con hipoplasia cerebelosa= en
itLissencefalia con ipoplasia cerebellare= en
nlLissencefalie met cerebellaire hypoplasie= en
ptLisencefalia com hipoplasia do cerebelo
plLizencefalia z hipoplazją móżdżku= en
csLissencefalie s hypoplázií mozečku= en
ukЛісенцефалія з гіпоплазією мозочка= en
zh无脑回畸形伴小脑发育不全= en
trSerebellar hipoplazi ile seyreden lizensefali= en

Definition in:

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Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
MONDO0019450Evalidated
MONDO19450Evalidated
UMLSC4274995Evalidated

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 (1):

  • ORPHA:48471Lissencephaly
    rare developmental anomalies during embryogenesis; rare genetic diseases; rare neurological diseases

Children (6):

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Genes

0 direct

Orphanet records no gene directly on this code.

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Prevalence and incidence

1 record
TypeClassValueAreaQualificationValidationSource
Point prevalenceUnknown—WorldwideClass onlyNot yet validated18521588[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.

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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