raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:772

Infantile Refsum disease

Synonyms: IRD · Mild PBD-ZSD · Mild peroxisome biogenesis disorder-Zellweger spectrum disorder

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

Infantile Refsum disease (IRD) is the mildest variant of the peroxisome biogenesis disorders, Zellweger syndrome spectrum (PBD- ZSS), characterized by hypotonia, retinitis pigmentosa, developmental delay, sensorineural hearing loss and liver dysfunction. Phenotypic overlap is seen between IRD and neonatal adrenoleukodystrophy (NALD).

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Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enInfantile Refsum diseaseIRD · Mild PBD-ZSD · Mild peroxisome biogenesis disorder-Zellweger spectrum disorder
frMaladie de Refsum infantileABP-MSZ, forme modérée · Anomalie de la biogenèse du péroxysome-maladie du spectre de Zellweger, forme modérée · IRD
deRefsum-Krankheit, infantile FormIRD · Mildes PBD-ZSD · Peroxisomenbiogenesedefekt-Zellweger-Spektrum-Störung, milde Form · Refsum-Syndrom, infantiles
esEnfermedad de Refsum infantilIRD · PBD-ZSD leve · Trastorno de la biogénesis del peroxisoma-trastorno del espectro Zellweger leve
itMalattia di Refsum infantileDifetto lieve della biogenesi dei perossisomi-spettro della sindrome di Zellweger · IRD · PBD-ZSD lieve
nlZiekte van Refsum, infantiele vormIRD · Milde PBD-ZSD · Milde peroxisomale biogenesestoornis - Zellweger spectrum stoornis
ptDoença Refsum da infânciaDoença do espectro Zellweger-disfunção moderada da biogénese dos peroxissomas · PBD-ZSD moderada
plNiemowlęca postać choroby RefsumaIRD
csInfantilní Refsumova nemocIRD
ukІнфантильна хвороба РефсумаIRD · Мякий PBD-ZSD · Легке порушення біогенезу пероксисом - розлад спектра Целльвегера
zh婴儿雷夫叙姆病IRD
trİnfantil Refsum hastalığıIRD

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM202370BTNTvalidated
OMIM266510BTNTvalidated
OMIM601539NTBTvalidated
OMIM614863NTBTvalidated
OMIM614867BTNTvalidated
OMIM614871BTNTvalidated
OMIM614873BTNTvalidated
OMIM614877BTNTvalidated
OMIM614885BTNTvalidated
OMIM614920BTNTvalidated
OMIM617370NTBTvalidated
ICD-10G60.1NTBTattributedvalidated
ICD-115C57.1NTBTindexvalidated
MONDO0019174Evalidated
MeSHD052919Evalidated
UMLSC0282527Evalidated
GARD4648Evalidated

E exact · NTBT this ORPHAcode is narrower than the target · BTNT broader than the target · ND not decided.

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Classification

Preferential parent (Orphanet linearisation):

Parents in the classifications (4):

No children.

4

Genes

13 direct
GeneAssociationStatusHGNCEnsemblOMIMLocusNameSource of validation
PEX1Disease-causing germline mutation(s) inAssessedHGNC:8850ENSG000001279806021367q21.2peroxisomal biogenesis factor 1
PEX10Disease-causing germline mutation(s) inAssessedHGNC:8851ENSG000001579116028591p36.32peroxisomal biogenesis factor 10
PEX11BDisease-causing germline mutation(s) inAssessedHGNC:8853ENSG000001317796038671q21.1peroxisomal biogenesis factor 11 beta
PEX12Disease-causing germline mutation(s) inAssessedHGNC:8854ENSG0000010873360175817q12peroxisomal biogenesis factor 12
PEX13Disease-causing germline mutation(s) inAssessedHGNC:8855ENSG000001629286017892p15peroxisomal biogenesis factor 13
PEX14Disease-causing germline mutation(s) inAssessedHGNC:8856ENSG000001426556017911p36.22peroxisomal biogenesis factor 14
PEX16Disease-causing germline mutation(s) inAssessedHGNC:8857ENSG0000012168060336011p11.2peroxisomal biogenesis factor 16
PEX19Disease-causing germline mutation(s) inAssessedHGNC:9713ENSG000001627356002791q23.2peroxisomal biogenesis factor 19
PEX2Disease-causing germline mutation(s) inAssessedHGNC:9717ENSG000001647511709938q21.13peroxisomal biogenesis factor 2
PEX26Disease-causing germline mutation(s) inAssessedHGNC:22965ENSG0000021519360866622q11.21peroxisomal biogenesis factor 26
PEX3Disease-causing germline mutation(s) inAssessedHGNC:8858ENSG000000346936031646q24.2peroxisomal biogenesis factor 3
PEX5Disease-causing germline mutation(s) inAssessedHGNC:9719ENSG0000013919760041412p13.31peroxisomal biogenesis factor 5
PEX6Disease-causing germline mutation(s) inAssessedHGNC:8859ENSG000001245876014986p21.1peroxisomal biogenesis factor 6
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Prevalence and incidence

1 record
TypeClassValueAreaQualificationValidationSource
Point prevalenceUnknown—WorldwideClass onlyNot yet validatedORPHANET

Value is Orphadata's ValMoy: the mean estimate per 100 000 for prevalence and incidence, the number of cases or families for case reports.

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HPO phenotypes

27 annotations · validated 2016-06-01
HPOTerm (as annotated by Orphanet)Diagnostic
Very frequent (99-80%)
HP:0001133Constriction of peripheral visual field
HP:0010571Elevated levels of phytanic acid
HP:0001508Failure to thrive
HP:0001263Global developmental delay
HP:0002240Hepatomegaly
HP:0000662Nyctalopia
HP:0003323Progressive muscle weakness
HP:0000510Rod-cone dystrophy
HP:0004322Short stature
HP:0008167Very long chain fatty acid accumulation
HP:0000505Visual impairment
Frequent (79-30%)
HP:0001251Ataxia
HP:0000708Atypical behavior
HP:0000365Hearing impairment
HP:0001252Hypotonia
HP:0000639Nystagmus
HP:0000407Sensorineural hearing impairment
HP:0001257Spasticity
Occasional (29-5%)
HP:0005930Abnormality of epiphysis morphology
HP:0000271Abnormality of the face
HP:0011675Arrhythmia
HP:0001638Cardiomyopathy
HP:0000518Cataract
HP:0010628Facial palsy
HP:0008064Ichthyosis
HP:0000648Optic atrophy
HP:0001250Seizure

Run the differential on the 11 obligate / very frequent terms

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Sources for this card