raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:1855

Spondyloenchondrodysplasia

Synonyms: SPENCD · Spondyloenchondromatosis · Spondylometaphyseal dysplasia with enchondromatous changes

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

Spondyloenchondrodysplasia (SPENCD) is a very rare genetic skeletal dysplasia characterized clinically by skeletal anomalies (short stature, platyspondyly, short broad ilia) and enchondromas in the long bones or pelvis. SPENCD may have a heterogeneous clinical spectrum with neurological involvement (spasticity, intellectual disability and cerebral calcifications) or autoimmune manifestations, such as immune thrombocytopenic purpura, systemic lupus erythematosus hemolytic anemia and thyroiditis.

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Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enSpondyloenchondrodysplasiaSPENCD · Spondyloenchondromatosis · Spondylometaphyseal dysplasia with enchondromatous changes
frDysplasie spondylo-enchondraleSPENCD · Spondyloenchondromatose
deSpondyloenchondrodysplasieSPENCD · Spondyloenchondromatose · Spondylometaphysäre Dysplasie mit enchondromatösen Veränderungen
esEspondiloencondrodisplasiaEspondiloencondromatosis · SPENCD
itSpondiloencondrodisplasiaDisplasia spondilometafisaria con alterazioni encondromatose · SPENCD · Spondiloencondromatosi
nlSpondylo-enchondrodysplasieSpondylometafysaire dysplasie met enchondromateuze veranderingen · SPENCD · Spondylo-enchondromatose
ptEspondilo-encondrodisplasia
plDysplazja kręgowa ze zmianami podobnymi do chrzęstniakówSpondyloenchondromatoza · Spondylometaphyseal dysplasia with enchondromatous changes · SPENCD
csSpondyloenchondrodysplázieSPENCD · Spondyloenchondromatóza · Spondylometafyzeální dysplázie s enchondromatózními změnami
ukСпондилоенхондродисплазіяSPENCD · Спондилоенхондроматоз · Спондилометафізарна дисплазія з енхондроматозними змінами
zh脊柱内生软骨瘤发育不良脊椎干骺端发育不良伴内生软骨瘤改变
trSpondiloenkondrodisplaziSPENCD · Spondiloenkondromatoz · Enkondromatöz değişiklikler ile seyreden spondilometafizyal displazi

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM607944Evalidated
ICD-10Q77.7NTBTattributedvalidated
ICD-11LD24.3NTBTindexvalidated
MONDO0011939Evalidated
MeSHC535782Evalidated
UMLSC0432222Evalidated
GARD4978Evalidated

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:

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Genes

1 direct
GeneAssociationStatusHGNCEnsemblOMIMLocusNameSource of validation
ACP5Disease-causing germline mutation(s) inAssessedHGNC:124ENSG0000010257517164019p13.2acid phosphatase 5, tartrate resistant21217755[PMID]_21217752[PMID]
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Prevalence and incidence

2 records
TypeClassValueAreaQualificationValidationSource
Cases/families36 casesWorldwideCase(s)Validated16470600[PMID]
Point prevalence<1 / 1 000 000—WorldwideClass onlyValidatedORPHANET_16470600[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

52 annotations · validated 2020-08-21
HPOTerm (as annotated by Orphanet)Diagnostic
Very frequent (99-80%)
HP:0003493Antinuclear antibody positivity
HP:0100255Metaphyseal dysplasia
HP:0000926Platyspondyly
Frequent (79-30%)
HP:0020151Anti-dsDNA antibody positivity
HP:0002960Autoimmunity
HP:0410263Brain imaging abnormality
HP:0012622Chronic kidney disease
HP:0004322Short stature
HP:0001257Spasticity
Occasional (29-5%)
HP:0002518Abnormal periventricular white matter morphology
HP:0030047Abnormality of lateral ventricle
HP:0000707Abnormality of the nervous system
HP:0001369Arthritis
HP:0001890Autoimmune hemolytic anemia
HP:0001973Autoimmune thrombocytopenia
HP:0002979Bowing of the legs
HP:0002514Cerebral calcification
HP:0002072Chorea
HP:0000684Delayed eruption of teeth
HP:0000689Dental malocclusion
HP:0003521Disproportionate short-trunk short stature
HP:0030038Enchondroma
HP:0001263Global developmental delay
HP:0032252Granuloma
HP:0002315Headache
HP:0000790Hematuria
HP:0012115Hepatitis
HP:0000822Hypertension
HP:0000946Hypoplastic ilia
HP:0001249Intellectual disability
HP:0005681Juvenile rheumatoid arthritis
HP:0009826Limb undergrowth
HP:0012514Lower limb pain
HP:0001270Motor delay
HP:0003326Myalgia
HP:0000093Proteinuria
HP:0030880Raynaud phenomenon
HP:0002719Recurrent infections
HP:0009882Short distal phalanx of finger
HP:0002725Systemic lupus erythematosus
HP:0002633Vasculitis
HP:0002119Ventriculomegaly
Very rare (<4-1%)
HP:0000824Decreased response to growth hormone stimulation test
HP:0000821Hypothyroidism
HP:0002808Kyphosis
HP:0011800Midface retrusion
HP:0001876Pancytopenia
HP:0000768Pectus carinatum
HP:0002090Pneumonia
HP:0001250Seizure
HP:0000988Skin rash
HP:0001045Vitiligo

Run the differential on the 3 obligate / very frequent terms

Annotation source: 26854080[PMID]_26951490[PMID]_30558059[PMID]

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Sources for this card