raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:95433

Autosomal recessive spinocerebellar ataxia-blindness-deafness syndrome

Synonyms: Autosomal recessive spinocerebellar ataxia type 3 · Autosomal recessive spinocerebellar ataxia-blindness-hearing loss syndrome · SCABD · SCAR3

Type
Disease
Group
Disorder
Inheritance
Autosomal recessive
Age of onset
Childhood
Status
active

A rare autosomal recessive syndromic cerebellar ataxia characterized by the association of early-onset cerebellar ataxia with hearing loss and blindness. Patients may also present demyelinating peripheral motor neuropathy. Cerebral MRI shows alterations of the cerebellar white matter without cerebellar atrophy.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enAutosomal recessive spinocerebellar ataxia-blindness-deafness syndromeAutosomal recessive spinocerebellar ataxia type 3 · Autosomal recessive spinocerebellar ataxia-blindness-hearing loss syndrome · SCABD · SCAR3
frSyndrome d'ataxie cérébelleuse autosomique récessive-cécité-surditéAtaxie spinocérébelleuse autosomique récessive type 3 · SCABD · SCAR3
deAutosomal-rezessive spinozerebelläre Ataxie-Blindheit-Schwerhörigkeit-SyndromAtaxie, spinozerebelläre, autosomal-rezessive, Typ 3 · Autosomal-rezessive spinozerebelläre Ataxie-Blindheit-Hörverlust-Syndrom · SCABD · SCAR3
esSíndrome de ataxia espinocerebelosa autosómica recesiva-ceguera-sorderaSCABD · SCAR3 · Síndrome de ataxia espinocerebelosa autosómica recesiva tipo 3 · Síndrome de ataxia espinocerebelosa autosómica recesiva-ceguera-hipoacusia
itSindrome autosomica recessiva atassia spinocerebellare-cecità-sorditàSCAR3
nlAutosomaal recessieve spinocerebellaire ataxie - blindheid - doofheid-syndroomAutosomaal recessieve spinocerebellaire ataxie - blindheid - gehoorverlies-syndroom · Autosomaal recessieve spinocerebellaire ataxie type 3 · SCABD · SCAR3
ptSíndrome de ataxia espinocerebelosa autossómica recessiva-cegueira-surdez
plAutosomalna recesywna ataksja móżdżkowa - ślepota - głuchotaSCAR3
csSyndrom zahrnující autozomálně recesivní cerebelární ataxii, slepotu a hluchotuSCAR3
ukАутосомно-рецесивний синдром спіноцеребеллярної атаксії-сліпоти-глухотиАутосомно-рецесивна спіноцеребеллярна атаксія типу 3 · Аутосомно-рецесивний синдром спіноцеребеллярної атаксії-сліпоти-глухоти · SCABD · SCAR3
zh常染色体隐性遗传性脊髓小脑共济失调-盲-聋综合征常染色体隐性遗传性脊髓小脑共济失调-盲-失聪综合征
trOtozomal resesif spinoserebellar ataksi-körlük-sağırlık sendromuSCABD · SCAR3 · Otozomal Çekinik spinoserebellar ataksi tip 3 · Otozomal Çekinik spinoserebellar ataksi-körlük-işitme kaybı sendromu

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM614863NTBTvalidated
ICD-10G11.1NTBTattributedvalidated
ICD-118A03.1YNTBTattributedvalidated
MONDO0010061Evalidated
MONDO10061Evalidated
MONDO13931Evalidated
MeSHC537309Evalidated
UMLSC1849094Evalidated
GARD9971Evalidated

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

1 direct
GeneAssociationStatusHGNCEnsemblOMIMLocusNameSource of validation
PEX6Disease-causing germline mutation(s) inAssessedHGNC:8859ENSG000001245876014986p21.1peroxisomal biogenesis factor 626669662[PMID]
5

Prevalence and incidence

2 records
TypeClassValueAreaQualificationValidationSource
Point prevalence<1 / 1 000 000—WorldwideClass onlyValidated11175288[PMID]_4154794[PMID]
Cases/families3 familiesWorldwideFamily(ies)ValidatedORPHANET_11175288[PMID]_4154794[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

19 annotations · validated 2018-11-26
HPOTerm (as annotated by Orphanet)Diagnostic
Frequent (79-30%)
HP:0000618Blindness
HP:0005102Cochlear degeneration
HP:0000524Conjunctival telangiectasia
HP:0006254Elevated alpha-fetoprotein
HP:0002066Gait ataxia
HP:0001288Gait disturbance
HP:0002346Head tremor
HP:0000365Hearing impairment
HP:0002166Impaired vibration sensation in the lower limbs
HP:0008180Mildly elevated creatine kinase
HP:0000639Nystagmus
HP:0000648Optic atrophy
HP:0002073Progressive cerebellar ataxia
HP:0007126Proximal amyotrophy
HP:0007141Sensorimotor neuropathy
HP:0000763Sensory neuropathy
HP:0002464Spastic dysarthria
HP:0007263Spinocerebellar atrophy
Excluded (0%)
HP:0000657Oculomotor apraxia

Annotation source: 11175288[PMID]_4154794[PMID]

7

Sources for this card