raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:1190

Atelosteogenesis type I

Synonyms: AO1 · AOI · Atelosteogenesis type 1 · Giant cell chondrodysplasia · Spondylo-humero-femoral dysplasia

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

A Pierre Robin syndrome associated with bone disease characterized by severe short-limbed dwarfism, joint dislocations, club feet along with distinctive facies and radiographic findings.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enAtelosteogenesis type IAO1 · AOI · Atelosteogenesis type 1 · Giant cell chondrodysplasia · Spondylo-humero-femoral dysplasia
frAtélostéogenèse type IAO1 · AOI · Atélostéogenèse type 1 · Chondrodysplasie à cellules géantes · Dysplasie spondylo-huméro-fémorale
deAtelosteogenesis Typ IAO1 · AOI · Atelosteogenesis Typ 1 · Dysplasie, spondylo-humero-femorale · Riesenzellchondrodysplasie
esAtelosteogénesis tipo IAO1 · Atelosteogénesis tipo 1 · Condrodisplasia de células gigantes · Displasia espondilo-húmero-femoral
itAtelosteogenesi tipo 1AO1 · AOI · Condrodisplasia a cellule giganti · Displasia spondilo-omero-femorale
nlAtelosteogenese type IAO1 · AOI · Atelosteogenese type 1 · Reuscelchondrodysplasie · Spondylo-humero-femorale dysplasie
ptAtelosteogénese tipo ICondrodisplasia de células gigantes · Displasia espondilo-úmero-femoral
plAtelosteogeneza typu IAO1 · AOI · Chondrodysplazja wielkokomórkowa · Dysplazja kręgowo-ramienno-udowa
csAtelosteogeneze, typ IAO1 · AOI · Atelosteogeneze, typ 1 · Spondylohumerofemorální dysplázie · Obrovskobuněčná chondrodysplázie
ukАтелостеогенез, тип IAO1 · AOI · Ателостеогенез типу 1 · Гігантоклітинна хондродисплазія · Спондило-гумеро-стегнова дисплазія
zh骨发育不全症1型脊柱-肱骨-股骨发育不良
trAtelosteogenez tip IAO1 · AOI · Atelosteogenez tip 1 · Dev hücreli kondrodisplazi · Spondilo-humero-femoral displazi

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM108720Evalidated
ICD-10Q78.8NTBTattributedvalidated
ICD-11LD24.ENTBTindexvalidated
MONDO0007167Evalidated
MeSHC535396Evalidated
UMLSC0265283Evalidated
GARD9287Evalidated

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 (3):

No children.

4

Genes

1 direct
GeneAssociationStatusHGNCEnsemblOMIMLocusNameSource of validation
FLNBDisease-causing germline mutation(s) (gain of function) inAssessedHGNC:3755ENSG000001360686033813p14.3filamin B20301736[PMID]
5

Prevalence and incidence

1 record
TypeClassValueAreaQualificationValidationSource
Point prevalence<1 / 1 000 000—WorldwideClass onlyValidatedORPHANET_[EXPERT]

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

32 annotations · validated 2019-10-24
HPOTerm (as annotated by Orphanet)Diagnostic
Frequent (79-30%)
HP:0002991Abnormal fibula morphology
HP:0009107Abnormal ossification involving the femoral head and neck
HP:0004599Absent or minimally ossified vertebral bodies
HP:0001156Brachydactyly
HP:0003417Coronal cleft vertebrae
HP:0009826Limb undergrowth
HP:0011800Midface retrusion
HP:0000774Narrow chest
HP:0002089Pulmonary hypoplasia
HP:0008905Rhizomelia
HP:0003097Short femur
HP:0001762Talipes equinovarus
HP:0005257Thoracic hypoplasia
Occasional (29-5%)
HP:0030992Abnormal pancreatic duct morphology
HP:0000175Cleft palate
HP:0002280Enlarged cisterna magna
HP:0000316Hypertelorism
HP:0001373Joint dislocation
HP:0001602Laryngeal stenosis
HP:0004894Laryngotracheal stenosis
HP:0000369Low-set ears
HP:0004785Malrotation of colon
HP:0000347Micrognathia
HP:0005562Multiple renal cysts
HP:0008857Neonatal short-trunk short stature
HP:0000926Platyspondyly
HP:0001561Polyhydramnios
HP:0000520Proptosis
HP:0007973Retinal dysplasia
HP:0002650Scoliosis
HP:0003026Short long bone
HP:0000506Telecanthus

Annotation source: 12454961[PMID]_23401428[PMID]_21985323[PMID]_20301736[PMID]

7

Sources for this card