raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:620113

Non-syndromic unilambdoid craniosynostosis

Synonyms: Isolated occipital plagiocephaly · Isolated unilamboid craniosynostosis · Non-syndromic posterior synostotic plagiocephaly · Non-syndromic unilateral lambdoid synostosis

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

A form of non-syndromic unisutural craniosynostosis characterized by premature fusion of one of the two lambdoid sutures, resulting in ipsilateral occipitoparietal flattening, contralateral parietal and frontal bossing, occipitomastoid bulge, and posterior-inferior displacement of the ipsilateral ear. The skull appears trapezoid from above, while the face is typically C-shaped with ipsilateral convexity.

1

Names in Orphadata languages

10 of 12 languages
LangNameSynonyms
enNon-syndromic unilambdoid craniosynostosisIsolated occipital plagiocephaly · Isolated unilamboid craniosynostosis · Non-syndromic posterior synostotic plagiocephaly · Non-syndromic unilateral lambdoid synostosis
frCraniosynostose lambdoïde unilatérale non syndromiqueCraniosynostose unilambdoïde non syndromique
deKraniosynostose, unilambdoidale, nicht-syndromaleIsolierte okzipitale Plagiozephalie · Isolierte unilamboide Kraniosynostose · Posteriore synostotische Plagiozephalie, nicht-syndromale · Unilaterale lambdoidale Synostose, nicht-syndromale
esCraneosinostosis unilambdoidea no sindrómicaCraneosinostosis unilamboidea aislada · Plagiocefalia occipital aislada · Plagiocefalia sinostótica posterior no sindrómica · Sinostosis lambdoidea unilateral no sindrómica
itCraniosinostosi monolambdoidea non sindromicaCraniosinostosi isolata monolambdoidea · Plagiocefalia isolata occipitale · Plagiocefalia sinostotica posteriore non sindromica · Sinostosi lambdoidea monolaterale non sindromica
nlNiet-syndromale unilambdoïde craniosynostoseGeïsoleerde unilambdoïde craniosynostose · Niet-syndromale posterieure synostotische plagiocefalie · Niet-syndromale unilaterale lambdoïde synostose · Niet-syndromale unilaterale synostose van lambdanaad · Niet-syndromale unilaterale synostose van sutura lambdoidea · Geïsoleerde occipitale plagiocefalie
ptCraniossinostose unilambdóide não-sindromáticaCraniossinostose unilambdóide isolada · Plagiocefalia occipital isolada · Plagiocefalia sinostótica posterior não-sindromática · Sinostose lambdóide unilateral não-sindromática
plNiesyndromiczna kraniosynostoza obejmująca szew węgłowy= en
csNesyndromická unilambdoidní kraniosynostóza= en
ukНесиндромальний уніламбдоїдний краніосиностозІзольована потилична плагіоцефалія · Ізольований одноламбідний краніосиностоз · Несиндромна задня синостотична плагіоцефалія · Несиндромний односторонній лямбдоподібний синостоз

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
ICD-10Q75.0NTBTattributedvalidated
ICD-11LB70.0YNTBTattributedvalidated
MONDO0850074Evalidated
UMLSC5680402Evalidated

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):

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 0000.0442 / 100 000WorldwideValue and classValidated35636659[PMID]_ORPHANET

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