raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:263463

CHST3-related skeletal dysplasia

Synonyms: Chondrodysplasia with congenital joint dislocations, CHST3 type · SDCD, CHST3 type · Spondyloepiphyseal dysplasia with congenital joint dyslocations, CHST3 type

Type
Disease
Group
Disorder
Inheritance
Autosomal recessive
Age of onset
Antenatal, Neonatal
Status
active

CHST3-related skeletal dysplasia is a very rare bone disorder characterized clinically by short stature of prenatal onset; dislocation of the knees, hips or elbows; club feet; limitation of range of motion of large joints; progressive kyphosis; and occasional scoliosis. In a few patients, minor heart valve dysplasia has also been described. Intellect, vision and hearing are normal.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enCHST3-related skeletal dysplasiaChondrodysplasia with congenital joint dislocations, CHST3 type · SDCD, CHST3 type · Spondyloepiphyseal dysplasia with congenital joint dyslocations, CHST3 type
frDysplasie squelettique associée à CHST3Chondrodysplasie avec luxations congénitales type CHST3 · Dysplasie spondylo-épiphysaire avec luxations congénitales type CHST3 · SDCD type CHST3
deCHST3-assoziierte SkelettdysplasieChondrodysplasie mit kongenitalen Gelenksdislokationen Typ CHST3 · Dysplasie, spondyloepiphysäre, mit kongenitalen Gelenksdislokationen Typ CHST3 · SDCD, CHST3-Typ
esDisplasia esquelética asociada a CHST3Condrodisplasia con luxaciones articulares congénitas tipo CHST3 · Displasia espondiloepifisaria con luxaciones congénitas de las articulaciones tipo CHST3 · SDCD tipo CHST3
itDisplasia scheletrica associata a CHST3Condrodisplasia con dislocazioni articolari congenite, tipo CHST3 · Sindrome di Larsen autosomica recessiva
nlCHST3-gerelateerde skeletdysplasieChondrodysplasie met congenitale gewrichtsluxaties, CHST3-type · SDCD, CHST3-type · Spondylo-epifysaire dysplasie met congenitale gewrichtsluxaties, CHST3-type
ptDisplasia esquelética CHST3-relacionada
plDysplazja szkieletowa zależna od CHST3Chondrodysplazja z wrodzonym zwichnięciem stawów, typu CHST3 · Dysplazja kręgosłupowo-nasadowa z wrodzonym zwichnięciem stawów, typu CHST3
csCHST3-vázaná skeletální dysplázieSDCD typ CHST3 · Autozomálně recesivní Larsenův syndrom · Chondrodysplázie s vrozenou dislokací kloubů, typ CHST3 · Spondyloepifyzární dysplázie s vrozenou dislokací kloubů, typ CHST3
ukСкелетна дисплазія, повязана з CHST3Хондродисплазія з вродженими вивихами суглобів, тип CHST3 · SDCD, тип CHST3 · Спондилоепіфізарна дисплазія з вродженими дислокаціями суглобів, тип CHST3
zhCHST3基因相关骨骼发育不良CHST3型脊柱骨骺发育不良伴先天性关节脱位
trCHST3 -ilişkili iskelet displazisiSDCD, CHST3 tipi · Doğumsal eklem çıkıkları ile seyreden kondrodisplazi, CHST3 tipi · Doğumsal eklem çıkıkları ile seyreden spondiloepifizyal displazi, CHST3 tipi

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM143095Evalidated
ICD-10Q74.8NTBTattributedvalidated
ICD-11LD24.3NTBTindexvalidated
MONDO0007738Evalidated
MONDO7738Evalidated
UMLSC1837657Evalidated
GARD13169Evalidated

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 (3):

No children.

Codes that Orphanet moved or referred to this one:

4

Genes

1 direct
GeneAssociationStatusHGNCEnsemblOMIMLocusNameSource of validation
CHST3Disease-causing germline mutation(s) inAssessedHGNC:1971ENSG0000012286360379910q22.1carbohydrate sulfotransferase 320830804[PMID]_21882400[PMID]
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Prevalence and incidence

2 records
TypeClassValueAreaQualificationValidationSource
Cases/families2 familiesWorldwideFamily(ies)Validated24458487[PMID]
Point prevalence<1 / 1 000 000—WorldwideClass onlyValidatedORPHANET_24458487[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

26 annotations · validated 2017-04-18
HPOTerm (as annotated by Orphanet)Diagnostic
Very frequent (99-80%)
HP:0003312Abnormal form of the vertebral bodies
HP:0009811Abnormality of the elbow
HP:0002829Arthralgia
HP:0001552Barrel-shaped chest
HP:0001156Brachydactyly
HP:0002967Cubitus valgus
HP:0003521Disproportionate short-trunk short stature
HP:0003037Enlarged joints
HP:0001371Flexion contracture
HP:0002857Genu valgum
HP:0000316Hypertelorism
HP:0002945Intervertebral space narrowing
HP:0010582Irregular epiphyses
HP:0008905Rhizomelia
HP:0002650Scoliosis
HP:0010585Small epiphyses
HP:0045075Sparse eyebrow
HP:0002515Waddling gait
Frequent (79-30%)
HP:0030680Abnormal cardiovascular system morphology
HP:0000337Broad forehead
HP:0000684Delayed eruption of teeth
HP:0002553Highly arched eyebrow
HP:0002751Kyphoscoliosis
HP:0000343Long philtrum
HP:0001270Motor delay
HP:0010049Short metacarpal

Run the differential on the 12 obligate / very frequent terms

Annotation source: 19320654[PMID]

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Sources for this card