raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:2916

Postaxial polydactyly-dental and vertebral anomalies syndrome

historical

Type
Malformation syndrome
Group
Disorder
Age of onset
Neonatal
Status
historical

Postaxial polydactyly-dental and vertebral anomalies syndrome is a rare, genetic, developmental defect during embryogenesis syndrome characterized by postaxial polydactyly and other abnormalities of the hands and feet (e.g. brachydactyly, broad toes), hypoplasia and fusion of the vertebral bodies, as well as dental abnormalities (fused teeth, macrodontia, hypodontia, short roots). There have been no further descriptions in the literature since 1977.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enPostaxial polydactyly-dental and vertebral anomalies syndrome
frSyndrome de polydactylie postaxiale-anomalies dentaires et vertébrales
dePolydaktylie, postaxiale - dentale und vertebrale Anomalien
esSíndrome de polidactilia postaxial-anomalías dentales y vertebrales
itSindrome da polidattilia postassiale ed anomalie dentali e vertebrali
nlPostaxiale polydactylie - dentale en vertebrale anomalieën-syndroom
ptSíndrome de polidactilia pós-axial-anomalias dentárias e das vértebras
plPolidaktylia pozaosiowa - anomalie zębów i kręgów
csSyndrom zahrnující postaxiální polydaktylii a anomálie zubů a obratlů
ukСиндром постаксіальної полідактилії - зубощелепні та хребетні аномалії
zh轴后性多指-牙齿脊柱畸形综合征
trPostaksiyal polidaktili-dental ve vertebral anomaliler sendromu

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM263540Evalidated
ICD-10Q87.2NTBTattributedvalidated
MONDO0009895Evalidated
UMLSC4750750Evalidated

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.

4

Genes

0 direct

Orphanet records no gene directly on this code.

5

Prevalence and incidence

2 records
TypeClassValueAreaQualificationValidationSource
Cases/families3 casesWorldwideCase(s)Validated187745[PMID]
Point prevalence<1 / 1 000 000—WorldwideClass onlyValidatedORPHANET_187745[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

29 annotations · validated 2016-06-01
HPOTerm (as annotated by Orphanet)Diagnostic
Very frequent (99-80%)
HP:0003312Abnormal form of the vertebral bodies
HP:0009738Abnormality of the antihelix
HP:0001156Brachydactyly
HP:0002937Hemivertebrae
HP:0008479Hypoplastic vertebral bodies
HP:0001572Macrodontia
HP:0001162Postaxial hand polydactyly
HP:0000474Thickened nuchal skin fold
HP:0002948Vertebral fusion
Frequent (79-30%)
HP:0000682Abnormality of dental enamel
HP:0009906Aplasia/Hypoplasia of the earlobes
HP:0004209Clinodactyly of the 5th finger
HP:0000286Epicanthus
HP:0001347Hyperreflexia
HP:0000668Hypodontia
HP:0002808Kyphosis
HP:0002162Low posterior hairline
HP:0000303Mandibular prognathia
HP:0002650Scoliosis
HP:0004322Short stature
Occasional (29-5%)
HP:0030680Abnormal cardiovascular system morphology
HP:0010935Abnormality of the upper urinary tract
HP:0000175Cleft palate
HP:0005988Congenital muscular torticollis
HP:0003042Elbow dislocation
HP:0000632Lacrimation abnormality
HP:0002999Patellar dislocation
HP:0001357Plagiocephaly
HP:0100672Vaginal hernia
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Sources for this card