raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:620178

Non-syndromic bilambdoid craniosynostosis

Synonyms: Isolated bilambdoid craniosynostosis · Isolated pachycephaly · Non-syndromic bilateral lambdoid synostosis

Type
Morphological anomaly
Group
Disorder
Inheritance
Autosomal recessive
Age of onset
Neonatal
Status
active

A form of non-syndromic multisutural craniosynostosis characterized by bilateral premature fusion of the lambdoid sutures, resulting in flattening and widening of the entire occipital region, with compensatory bossing of the vertex region (giving the cranium an elongated shape), and anterior-posterior displacement of the ears.

1

Names in Orphadata languages

10 of 12 languages
LangNameSynonyms
enNon-syndromic bilambdoid craniosynostosisIsolated bilambdoid craniosynostosis · Isolated pachycephaly · Non-syndromic bilateral lambdoid synostosis
frCraniosynostose lambdoïde bilatérale non syndromiqueCraniosynostose bilambdoïde non syndromique · Craniosynostose lambdoïde bilatérale isolée
deKraniosynostose, bilambdoide, nicht-syndromaleBilaterale lambdoidale Synostose, nicht-syndromale · Isolierte Pachyzephalie · Isolierte bilambdoide Kraniosynostose
esCraneosinostosis bilambdoidea no sindrómicaCraneosinostosis bilambdoidea aislada · Paquicefalia aislada · Sinostosis lambdoidea bilateral no sindrómica
itCraniosinostosi lambdoidea bilaterale non sindromicaCraniosinostosi lambdoidea isolata · Craniosinostosi lambdoidea non sindromica · Pachicefalia isolata
nlNiet-syndromale bilambdoïde craniosynostoseGeïsoleerde bilambdoïde craniosynostose · Geïsoleerde pachycefalie · Niet-syndromale bilaterale lambdoïde synostose · Niet-syndromale bilaterale synostose van lambdanaad · Niet-syndromale bilaterale synostose van sutura lambdoidea
ptCraniossinostose bilambdóide não-sindromáticaCraniossinostose bilambdóide isolada · Paquicefalia isolada · Sinostose lambdóide bilateral não-sindromática
plNiesyndromiczna kraniosynostoza obejmująca oba szwy węgłowe= en
csNesyndromická bilambdoidní kraniosynostóza= en
ukНесиндромальний біламбдоїдний краніосиностозІзольований біламбдоїдний краніосиностоз · Ізольована пахіцефалія · Несиндромний двосторонній лямбдоподібний синостоз

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
ICD-10Q75.0NTBTattributedvalidated
ICD-11LB70.0YNTBTattributedvalidated
MONDO0850079Evalidated
UMLSC5680395Evalidated

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

1 record
TypeClassValueAreaQualificationValidationSource
Point prevalence<1 / 1 000 000—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.

6

HPO phenotypes

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

7

Sources for this card