raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:498485

Overgrowth-metaphyseal undermodeling-spondylar dysplasia syndrome

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

A rare overgrowth syndrome with skeletal involvement characterized by pre- or postnatal onset of overgrowth, accelerated bone age in infancy and early childhood, tall stature, bony overgrowth of the skull base, spondylar dysplasia, and undermodeling of the tubular bones. Facial dysmorphism includes mild hypertelorism, depressed nasal bridge, short and broad nose, and full lower lip. Additional reported features are scoliosis, as well as delayed puberty, cryptorchidism, and hypospadias.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enOvergrowth-metaphyseal undermodeling-spondylar dysplasia syndrome
frSyndrome de croissance excessive-modelage métaphysaire réduit-dysplasie spondylaire
deGroßwuchs-metaphysäre Untermodellierung-spondyläre Dysplasie-Syndrom
esSíndrome de sobrecrecimiento-defecto de modelado metafisario-displasia espondilar
itSindrome iperaccrescimento - scarso modellamento delle metafisi - displasia vertebrale
nlOvergroei - verminderde metafysaire modellering - spondylaire dysplasie-syndroom
ptSíndrome de sobrecrescimento-undermodeling metafisário-displasia espondilar
plZespół nadmiernego wzrostu i dysplazji kręgosłupowo-przynasadowej
csSyndrom zahrnující nadměrný růst, nedostatečnou modelací metafýz a spondylární dysplázii
ukСиндром розростання-метафізарного недомоделювання-спондилярної дисплазії
zh过度生长-干骺端发育不良-脊柱发育不良综合征
trAşırı büyüme-metafizer zayıf modelleme-spondiler displazi sendromu

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM608811Evalidated
ICD-10Q87.3NTBTattributedvalidated
ICD-11LD2CNTBTattributedvalidated
MONDO0012131Evalidated
MeSHC537355Evalidated
UMLSC1837316Evalidated
GARD10066Evalidated

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 (1):

No children.

4

Genes

0 direct

Orphanet records no gene directly on this code.

5

Prevalence and incidence

2 records
TypeClassValueAreaQualificationValidationSource
Cases/families4 casesWorldwideCase(s)Validated15214018[PMID]_17618504[PMID]
Point prevalence<1 / 1 000 000—WorldwideClass onlyValidatedORPHANET_15214018[PMID]_17618504[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.

6

HPO phenotypes

Orphanet has no HPO annotation for this code in this release.

7

Sources for this card