raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:2920

Oliver syndrome

historical

Synonyms: Postaxial polydactyly-intellectual disability syndrome

Type
Malformation syndrome
Group
Disorder
Inheritance
Autosomal recessive
Age of onset
Infancy, Neonatal
Status
historical

A rare multiple congenital anomalies/dysmorphic syndrome characterized by intellectual disability and postaxial polydactyly of the hands, and sometimes of the feet. Seizures are also common and usually manifest in the first months of life or in early childhood. Other clinical signs may include cutaneous syndactyly, camptodactyly and clinodactyly of fingers and brachydactyly and syndactyly of the toes. There have been no further descriptions in the literature since 1983.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enOliver syndromePostaxial polydactyly-intellectual disability syndrome
frSyndrome d'OliverSyndrome de polydactylie postaxiale-déficience intellectuelle
deOliver-SyndromPostaxiale Polydaktylie mit Intelligenzminderung
esSíndrome de OliverSíndrome de polidactilia postaxial-discapacidad intelectual
itSindrome di OliverSindrome polidattilia postassiale-disabilità intellettiva
nlSyndroom van OliverPostaxiale polydactylie - intellectuele achterstand-syndroom
ptSíndrome OliverSíndrome de polidactilia pós-axial-perturbação do desenvolvimento intelectual
plZespół OliveraPolidaktylia pozaosiowa - upośledzenie umysłowe
csOliverův syndromSyndrom zahrnující postaxiální polydaktylii a mentální retardaci
ukСиндром ОлівераСиндром постаксіальної полідактилії - інтелектуальної недостатності
zhOliver综合征轴后多指(趾)-智力障碍综合征
trOliver SendromuPostaksiyal polidaktili-zihinsel yetersizlik sendromu

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM258200Evalidated
ICD-10Q87.2NTBTattributedvalidated
ICD-11LD26.2NTBTindexvalidated
MONDO0009777Evalidated
MeSHC564931Evalidated
UMLSC1850320Evalidated
GARD4069Evalidated

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 (3):

No children.

4

Genes

0 direct

Orphanet records no gene directly on this code.

5

Prevalence and incidence

2 records
TypeClassValueAreaQualificationValidationSource
Cases/families7 casesWorldwideCase(s)Validated16278897[PMID]
Point prevalence<1 / 1 000 000—WorldwideClass onlyValidatedORPHANET_16278897[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

25 annotations · validated 2019-03-12
HPOTerm (as annotated by Orphanet)Diagnostic
Very frequent (99-80%)
HP:0002187Intellectual disability, profound
HP:0001162Postaxial hand polydactyly
Frequent (79-30%)
HP:0001344Absent speech
HP:0002069Bilateral tonic-clonic seizure
HP:0010554Cutaneous finger syndactyly
HP:0000303Mandibular prognathia
HP:0002465Poor speech
HP:0001830Postaxial foot polydactyly
HP:0001831Short toe
Occasional (29-5%)
HP:0000387Absent earlobe
HP:0100490Camptodactyly of finger
HP:0004209Clinodactyly of the 5th finger
HP:0000689Dental malocclusion
HP:0002987Elbow flexion contracture
HP:0000218High palate
HP:0001812Hyperconvex fingernails
HP:0001511Intrauterine growth retardation
HP:0006380Knee flexion contracture
HP:0000252Microcephaly
HP:0001212Prominent fingertip pads
HP:0002650Scoliosis
HP:0000322Short philtrum
HP:0000385Small earlobe
HP:0002558Supernumerary nipple
HP:0000574Thick eyebrow

Annotation source: 16278897[PMID]

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Sources for this card