raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:86821

Lissencephaly type 3-familial fetal akinesia sequence syndrome

Type
Malformation syndrome
Group
Disorder
Inheritance
Autosomal recessive
Age of onset
Antenatal
Status
active

Lissencephaly type 3-familial fetal akinesia sequence syndrome is characterised by the association of microencephaly, agenesis of the corpus callosum, brainstem hypoplasia, cystic cerebellum and foetal akinesia sequence. Less than 10 cases have been described so far. The syndrome is transmitted as an autosomal recessive trait and may be an allelic variant of Neu-Laxova syndrome and lissencephaly type III with metacarpal bone dysplasia.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enLissencephaly type 3-familial fetal akinesia sequence syndrome
frSyndrome de lissencéphalie type 3-séquence d'akinésie foetale familiale
deLissenzephalie Typ 3-familiäre fetale Akinesie-Sequenz-Syndrom
esSíndrome de lisencefalia tipo 3-secuencia de aquinesia fetal familiar
itLissencefalia tipo 3 - sequenza dell'acinesia fetale familiare
nlLissencefalie type 3 - familiale foetale akinesie sequentie-syndroom
ptSíndrome de lisencefalia tipo 3-sequência de acinesia fetal familiar
plLizencefalia typu 3 - rodzinna sekwencja akinezji płodu
csSyndrom zahrnující lissencefalii typu 3 a sekvenci familiární fetální akineze
ukСиндром лісенцефалії 3-го типу-сімейної послідовності акінезії плода
zh无脑回畸形3型-家族性胎儿运动机能丧失序列综合征
trLizensefali tip 3-ailesel fetal akinezi dizi sendromu

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM601160NTBTvalidated
ICD-10Q04.3NTBTattributedvalidated
ICD-11LD20.1NTBTindexvalidated
MONDO0019449Evalidated
UMLSC4305255Evalidated

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

0 direct

Orphanet records no gene directly on this code.

5

Prevalence and incidence

2 records
TypeClassValueAreaQualificationValidationSource
Cases/families5 casesWorldwideCase(s)Validated8779318[PMID]
Point prevalence<1 / 1 000 000—WorldwideClass onlyValidatedORPHANET_8779318[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.

7

Sources for this card