raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:457378

Complex lethal osteochondrodysplasia

Synonyms: Complex lethal osteochondrodysplasia, Symoens-Barnes-Gistelinck type

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

A rare, genetic, primary bone dysplasia with decreased bone density characterized by fetal lethality, severe hypomineralization of the entire skeleton, barrel shaped thorax with short ribs, multiple intrauterine fractures of ribs and long bones, ascites, pleural effusion, and ventriculomegaly. Variable congenital developmental anomalies affecting the brain, lungs, and kidneys have also been associated.

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Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enComplex lethal osteochondrodysplasiaComplex lethal osteochondrodysplasia, Symoens-Barnes-Gistelinck type
frOstéochondrodysplasie complexe létaleOstéochondrodysplasie complexe létale, type Symoens-Barnes-Gistelinck
deOsteochondrodysplasie, komplexe letaleKomplexe letale Osteochondrodysplasie Typ Symoens-Barnes-Gistelinck
esOsteocondrodisplasia letal complejaOsteocondrodisplasia letal compleja tipo Symoens-Barnes-Gistelinck
itOsteocondrodisplasia letale complessa
nlComplexe letale osteochondrodysplasieComplexe letale osteochondrodysplasie, Symoens-Barnes-Gistelinck type
ptOsteocondrodisplasia complexa fatal
plZłożona śmiertelna osteochondrodysplazjaZłożona śmiertelna osteochondrodysplazja typu Symoensa, Barnesa i Gistelincka
csKomplexní letální osteochondrodysplázieKomplex letální osteochondrodysplázie, Symoensové-Barnesův-Gistelinckové typ · Komplex letální osteochondrodysplázie, Symoens-Barnes-Gistelinckové typ
ukСкладна летальна остеохондродисплазіяКомплексна летальна остеохондродисплазія типу Симоенса-Барнса-Гістелінка
zh复杂致死性骨软骨发育不良复杂致死性骨软骨发育不良,Symoens-Barnes-Gistelinck型
trKompleks letal osteokondrodisplaziKompleks letal osteokondrodisplazi, Symoens-Barnes-Gistelinck tipi

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM616897Evalidated
ICD-10Q78.8NTBTattributedvalidated
ICD-11LD24.KYNTBTattributedvalidated
MONDO0014821Evalidated
UMLSC4225162Evalidated

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 (2):

No children.

4

Genes

1 direct
GeneAssociationStatusHGNCEnsemblOMIMLocusNameSource of validation
TAPT1Disease-causing germline mutation(s) inAssessedHGNC:26887ENSG000001697626127584p15.32transmembrane anterior posterior transformation 126365339[PMID]
5

Prevalence and incidence

2 records
TypeClassValueAreaQualificationValidationSource
Cases/families6 casesWorldwideCase(s)Validated26365339[PMID]
Point prevalence<1 / 1 000 000—WorldwideClass onlyValidatedORPHANET_26365339[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