raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:178377

Osteosclerosis-developmental delay-craniosynostosis syndrome

Type
Malformation syndrome
Group
Disorder
Inheritance
Autosomal dominant
Age of onset
Infancy, Neonatal
Status
active

This newly described syndrome is characterized by osteosclerosis, developmental delay and craniosynostosis.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enOsteosclerosis-developmental delay-craniosynostosis syndrome
frSyndrome d'ostéosclérose-retard de développement-craniosynostose
deOsteosklerose-Entwicklungsverzögerung-Kraniosynostose-Syndrom
esSíndrome de osteoesclerosis-retraso del desarrollo-craneosinostosis
itOsteosclerosi - ritardo dello sviluppo - craniosinostosi
nlOsteosclerose - ontwikkelingsachterstand - craniosynostose
ptSíndrome de osteosclerose-perturbação do desenvolvimento-craniossinostose
plOsteoskleroza- opóźnienie rozwoju - kraniosynostoza
csSyndrom zahrnující osteosklerózu, opožděný vývoj a kraniosynostózu
ukСиндром остеосклерозу-затримки розвитку-краніосиностозу
zh骨硬化-发育迟缓-颅缝早闭综合征
trOsteoskleroz-gelişme geriliği-kraniyosinostoz sendromu

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
ICD-10Q75.8NTBTattributedvalidated
ICD-11LD2F.1YNTBTindexvalidated
MONDO0015800Evalidated
UMLSC4302818Evalidated

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

1 direct
GeneAssociationStatusHGNCEnsemblOMIMLocusNameSource of validation
LRP5Disease-causing germline mutation(s) (gain of function) inAssessedHGNC:6697ENSG0000016233760350611q13.2LDL receptor related protein 515940380[PMID]
5

Prevalence and incidence

2 records
TypeClassValueAreaQualificationValidationSource
Cases/families13 casesWorldwideCase(s)Validated15940380[PMID]
Point prevalence<1 / 1 000 000—WorldwideClass onlyValidatedORPHANET_15940380[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

16 annotations · validated 2016-06-01
HPOTerm (as annotated by Orphanet)Diagnostic
Very frequent (99-80%)
HP:0000248Brachycephaly
HP:0000337Broad forehead
HP:0012802Broad jaw
HP:0000348High forehead
HP:0000316Hypertelorism
HP:0011001Increased bone mineral density
HP:0000256Macrocephaly
HP:0002684Thickened calvaria
Frequent (79-30%)
HP:0001363Craniosynostosis
Occasional (29-5%)
HP:0010628Facial palsy
HP:0002315Headache
HP:0000365Hearing impairment
HP:0002516Increased intracranial pressure
HP:0011342Mild global developmental delay
HP:0000648Optic atrophy
HP:0000505Visual impairment

Run the differential on the 8 obligate / very frequent terms

7

Sources for this card