raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:93357

SPONASTRIME dysplasia

Synonyms: Spondylar and nasal changes with striations of the metaphyses (SPONASTRIME) dysplasia · Spondyloepimetaphyseal dysplasia, Sponastrime type

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

A rare, genetic, spondyloepimetaphyseal dysplasia disease characterized by short-limbed short stature (more pronounced in lower limbs) associated with characterisitic facial dysmorphism (i.e. relative macrocephaly, frontal bossing, midface hypoplasia, depressed nasal root, small upturned nose, prognathism) and abnormal radiological findings, which include abnormal vertebral bodies (particularly in the lumbar region), striated metaphyses, generalized mild osteoporosis, and delayed ossification of the carpal bones. Progressive coxa vara, short dental roots, hypogammaglobulinemia and cataracts may be occasionally associated.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enSPONASTRIME dysplasiaSpondylar and nasal changes with striations of the metaphyses (SPONASTRIME) dysplasia · Spondyloepimetaphyseal dysplasia, Sponastrime type
frDysplasie SPONASTRIMEDysplasie spondylo-méta-épiphysaire type Sponastrime
deSPONASTRIME-DysplasieDysplasie, spondyloepimetaphysäre, Typ Sponastrime · Spondyläre und nasale Veränderungen mit Striae der Metaphyse (SPONASTRIME)-Dysplasie
esDisplasia SPONASTRIMECambios espondilóticos y nasales con estriaciones de la displasia metafisaria (SPONASTRIME) · Displasia espondilometaepifisaria tipo Sponastrime
itDisplasia SPONASTRIMEDisplasia spondiloepimetafisaria, tipo Sponastrime · Displasia spondilometaepifisaria, tipo Sponastrime
nlSPONASTRIME-dysplasieSpondylaire en nasale veranderingen met striae van metafysen (SPONASTRIME)-dysplasie · Spondylo-epimetafysaire dysplasie, Sponastrime-type
ptDisplasia SPONASTRIME
plDysplazja SPONASTRIMEDysplazja kręgowo-nasadowo-przynasadowa, typ Sponastrime
csSPONASTRIME dysplázieSpondyloepimetafyzární dysplázie, typ Sponastrime
ukДисплазія SPONASTRIMEСпондилярні та носові зміни зі смугастою дисплазією метафізів (SPONASTRIME) · Спондилоепіметафізарна дисплазія, тип Sponastrime
zhSponastrime型脊椎干骺端发育不全脊柱和鼻部变化伴干骺端发育不良,Sponastrime型
trSPONASTRIME displazisiSpondiloepimetafizyal displazi, Sponastrime tipi · Metafiz (SPONASTRIME) displazisinin çizgileri ile seyreden spondiler ve nazal değişiklikler

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM271510Evalidated
ICD-10Q77.7NTBTattributedvalidated
ICD-11LD24.3NTBTindexvalidated
MONDO0010068Evalidated
MeSHC535786Evalidated
UMLSC1300260Evalidated
GARD4970Evalidated

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

1 direct
GeneAssociationStatusHGNCEnsemblOMIMLocusNameSource of validation
TONSLDisease-causing germline mutation(s) (loss of function) inAssessedHGNC:7801ENSG000001609496045468q24.3tonsoku like, DNA repair protein30773278[PMID]_30773277[PMID]
5

Prevalence and incidence

2 records
TypeClassValueAreaQualificationValidationSource
Cases/families16 casesWorldwideCase(s)Validated18203204[PMID]
Point prevalence<1 / 1 000 000—WorldwideClass onlyValidatedORPHANET_18203204[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

79 annotations · validated 2021-07-05
HPOTerm (as annotated by Orphanet)Diagnostic
Very frequent (99-80%)
HP:0001999Abnormal facial shape
HP:0000925Abnormality of the vertebral column
HP:0005280Depressed nasal bridge
HP:0008873Disproportionate short-limb short stature
HP:0011800Midface retrusion
HP:0000926Platyspondyly
Frequent (79-30%)
HP:0004586Biconcave vertebral bodies
HP:0001156Brachydactyly
HP:0002857Genu valgum
HP:0001511Intrauterine growth retardation
HP:0009826Limb undergrowth
HP:0003025Metaphyseal irregularity
HP:0031367Metaphyseal striations
HP:0008905Rhizomelia
HP:0100864Short femoral neck
HP:0001518Small for gestational age
Occasional (29-5%)
HP:0000463Anteverted nares
HP:0010941Aplasia of the nasal bone
HP:0005743Avascular necrosis of the capital femoral epiphysis
HP:0001769Broad foot
HP:0001169Broad palm
HP:0000518Cataract
HP:0002308Chiari malformation
HP:0007707Congenital aphakia
HP:0002812Coxa vara
HP:0004313Decreased circulating antibody level
HP:0001875Decreased total neutrophil count
HP:0002663Delayed epiphyseal ossification
HP:0000696Delayed eruption of permanent teeth
HP:0004944Dilatation of the cerebral artery
HP:0000286Epicanthus
HP:0003015Flared metaphysis
HP:0003370Flat capital femoral epiphysis
HP:0003895Flattened humeral epiphyses
HP:0002007Frontal bossing
HP:0002761Generalized joint hypermobility
HP:0001263Global developmental delay
HP:0002827Hip dislocation
HP:0030043Hip subluxation
HP:0004603Hyperconvex vertebral body endplates
HP:0040221Hypoplasia of the dental root
HP:0004646Hypoplasia of the nasal bone
HP:0000047Hypospadias
HP:0000821Hypothyroidism
HP:0006889Intellectual disability, borderline
HP:0010234Ivory epiphyses of the phalanges of the hand
HP:0001382Joint hypermobility
HP:0030839Knee pain
HP:0002751Kyphoscoliosis
HP:0001377Limited elbow extension
HP:0000276Long face
HP:0100559Lower limb asymmetry
HP:0002938Lumbar hyperlordosis
HP:0000303Mandibular prognathia
HP:0003027Mesomelia
HP:0003016Metaphyseal widening
HP:0025492Microcoria
HP:0000691Microdontia
HP:0030833Neck pain
HP:0000639Nystagmus
HP:0005446Obtuse angle of mandible
HP:0010740Osteopathia striata
HP:0001763Pes planus
HP:0000826Precocious puberty
HP:0011220Prominent forehead
HP:0006532Recurrent pneumonia
HP:0004482Relative macrocephaly
HP:0002650Scoliosis
HP:0003182Shallow acetabular fossae
HP:0006336Short dental roots
HP:0001773Short foot
HP:0003026Short long bone
HP:0003196Short nose
HP:0004279Short palm
HP:0030834Shoulder pain
HP:0010585Small epiphyses
HP:0001607Subglottic stenosis
HP:0001621Weak voice
HP:0000445Wide nose

Run the differential on the 6 obligate / very frequent terms

Annotation source: 30773277[PMID]_30773278[PMID]_32959051[PMID]

7

Sources for this card