raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:2635

Metatropic dysplasia

Synonyms: Metatropic dwarfism

Type
Disease
Group
Disorder
Inheritance
Autosomal dominant, Not applicable
Age of onset
Antenatal, Neonatal
Status
active

Metatropic dysplasia (MTD) is a rare spondyloepimetaphyseal dysplasia characterized by a long trunk and short limbs in infancy followed by severe and progressive kyphoscoliosis causing a reversal in proportions during childhood (short trunk and long limbs) and a final short stature in adulthood.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enMetatropic dysplasiaMetatropic dwarfism
frDysplasie métatropiqueNanisme métatropique
deMetatrope DysplasieKleinwuchs, metatroper
esDisplasia metatrópicaEnanismo metatrópico
itDisplasia metatropicaNanismo metatropico
nlMetatropische dysplasieMetatropische dwerggroei
ptDisplasia metatrópicaNanismo metatrópico
plDysplazja zmienna typu 1Karłowatość metatropiczna
csMetatropická dysplázieMetatropické trpaslictví
ukМетатропна дисплазіяМетатропна карликовість
zh变型骨发育不良间相性侏儒
trMetatropik displaziMetatropik cücelik

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM156530Evalidated
ICD-10Q77.8NTBTattributedvalidated
ICD-11LD24.3NTBTindexvalidated
MONDO0007986Evalidated
MeSHC537356Evalidated
UMLSC0265281Evalidated
GARD3571Evalidated
MedDRA10082970Evalidated

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 (2):

No children.

Codes that Orphanet moved or referred to this one:

4

Genes

1 direct
GeneAssociationStatusHGNCEnsemblOMIMLocusNameSource of validation
TRPV4Disease-causing germline mutation(s) inAssessedHGNC:18083ENSG0000011119960542712q24.11transient receptor potential cation channel subfamily V member 422791502[PMID]
5

Prevalence and incidence

3 records
TypeClassValueAreaQualificationValidationSource
Cases/families81 casesWorldwideCase(s)ValidatedORPHANET_24223250[PMID]
Point prevalence<1 / 1 000 000—WorldwideClass onlyValidatedORPHANET
Prevalence at birth1-9 / 1 000 0000.2 / 100 000EuropeValue and classValidatedEUROCAT European surveillance of congenital anomalies 2005-2012[OTHER]

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

26 annotations · validated 2016-06-01
HPOTerm (as annotated by Orphanet)Diagnostic
Very frequent (99-80%)
HP:0003103Abnormal cortical bone morphology
HP:0003336Abnormal enchondral ossification
HP:0003312Abnormal form of the vertebral bodies
HP:0005108Abnormal intervertebral disk morphology
HP:0000944Abnormal metaphysis morphology
HP:0000772Abnormal rib morphology
HP:0005280Depressed nasal bridge
HP:0002826Halberd-shaped pelvis
HP:0000348High forehead
HP:0008434Hypoplastic cervical vertebrae
HP:0001387Joint stiffness
HP:0002808Kyphosis
HP:0100818Long thorax
HP:0002983Micromelia
HP:0000774Narrow chest
HP:0100670Rough bone trabeculation
HP:0002650Scoliosis
HP:0003510Severe short stature
HP:0002652Skeletal dysplasia
Occasional (29-5%)
HP:0006703Aplasia/Hypoplasia of the lungs
HP:0100490Camptodactyly of finger
HP:0000518Cataract
HP:0000175Cleft palate
HP:0004209Clinodactyly of the 5th finger
HP:0000238Hydrocephalus
HP:0000358Posteriorly rotated ears

Run the differential on the 12 obligate / very frequent terms

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Sources for this card