raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:543470

Optic atrophy-ataxia-peripheral neuropathy-global developmental delay syndrome

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

A rare mitochondrial disease characterized by a variable clinical phenotype with the core features of optic atrophy, ataxia, and hypotonia. Additional common manifestations include global developmental delay with or without regression, neuropathy, spasticity, and microcephaly, less frequently seizures, movement disorder, hearing loss, and respiratory failure. Brain imaging may show abnormalities of the corpus callosum, basal ganglia, and midbrain, cerebral or cerebellar atrophy, or white matter abnormalities. The condition is frequently fatal at an early age.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enOptic atrophy-ataxia-peripheral neuropathy-global developmental delay syndrome
frSyndrome d'atrophie optique-ataxie-neuropathie périphérique-retard global de développement
deOptikusatrophie-Ataxie-periphere Neuropathie-globale Entwicklungsverzögerung-Syndrom
esSíndrome de atrofia óptica-ataxia-neuropatía periférica-retraso global del desarrollo
itSindrome atrofia ottica - atassia - neuropatia periferica - ritardo dello sviluppo globale
nlOpticusatrofie - ataxie - perifere neuropathie - algehele ontwikkelingsachterstand-syndroom
ptSíndrome de atrofia óptica-ataxia-neuropatia periférica-atraso global do desenvolvimento
plZespół atrofii nerwu wzrokowego, ataksji, obwodowej neuropatii i całościowego opóźnienia rozwoju
csSyndrom zahrnující optickou atrofii, ataxii, periferní neuropatii a celkové opoždění vývoje
ukСиндром атрофії зорового нерва-атаксії-периферичної нейропатії-глобальної затримки розвитку
zh视神经萎缩-共济失调-周围神经病变-全身发育迟缓综合征
trOptik atrofi-ataksi-periferik nöropati-yaygın gelişme geriliği sendromu

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM620887Evalidated
ICD-10E88.8NTBTattributedvalidated
ICD-115C58.YNTBTattributedvalidated
MONDO0034092Evalidated
UMLSC5681321Evalidated

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 (6):

No children.

4

Genes

1 direct
GeneAssociationStatusHGNCEnsemblOMIMLocusNameSource of validation
FDXRDisease-causing germline mutation(s) inAssessedHGNC:3642ENSG0000016151310327017q25.1ferredoxin reductase29040572[PMID]
5

Prevalence and incidence

2 records
TypeClassValueAreaQualificationValidationSource
Cases/families17 casesWorldwideCase(s)Validated29040572[PMID]
Point prevalence<1 / 1 000 000—WorldwideClass onlyValidatedORPHANET_29040572[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

39 annotations · validated 2020-08-19
HPOTerm (as annotated by Orphanet)Diagnostic
Very frequent (99-80%)
HP:0010862Delayed fine motor development
HP:0002194Delayed gross motor development
HP:0000750Delayed speech and language development
HP:0001508Failure to thrive
HP:0001263Global developmental delay
HP:0000648Optic atrophy
Frequent (79-30%)
HP:0012087Abnormal mitochondrial shape
HP:0001251Ataxia
HP:0002376Developmental regression
HP:0001252Hypotonia
HP:0002465Poor speech
HP:0001257Spasticity
HP:0000505Visual impairment
Occasional (29-5%)
HP:0002134Abnormal basal ganglia morphology
HP:0001273Abnormal corpus callosum morphology
HP:0100022Abnormality of movement
HP:0000062Ambiguous genitalia
HP:0008936Axial hypotonia
HP:0000618Blindness
HP:0000518Cataract
HP:0000603Central scotoma
HP:0001272Cerebellar atrophy
HP:0001320Cerebellar vermis hypoplasia
HP:0012430Cerebral white matter hypoplasia
HP:0008665Clitoral hypertrophy
HP:0012448Delayed myelination
HP:0002506Diffuse cerebral atrophy
HP:0002353EEG abnormality
HP:0002066Gait ataxia
HP:0001276Hypertonia
HP:0002079Hypoplasia of the corpus callosum
HP:0007333Hypoplasia of the frontal lobes
HP:0000252Microcephaly
HP:0000639Nystagmus
HP:0012794Periventricular white matter hypodensities
HP:0100602Preeclampsia
HP:0001622Premature birth
HP:0001250Seizure
HP:0012697Small basal ganglia

Run the differential on the 6 obligate / very frequent terms

Annotation source: 29040572[PMID]_30250212[PMID]

7

Sources for this card