raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:35069

PLA2G6-related neurodegeneration, infantile-onset

Synonyms: INAD · Infantile neuroaxonal dystrophy · Infantile PLAN · Infantile phospholipase A2-associated neurodegeneration · Seitelberger disease · PLA2G6-associated neurodegeneration, infantile-onset

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

A rare neurodegeneration with brain iron accumulation (NBIA) disorder characterized by global developmental delay and eventual regression, increasing neurological involvement with symmetrical spastic tetraplegia, loss of cognitive and bulbar function, seizures and optic atrophy. The infantile form of PLAN, which has onset before three years of age, is most common relative to juvenile-onset and adult-onset forms, and individuals may present with symptoms anywhere along a continuum.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enPLA2G6-related neurodegeneration, infantile-onsetINAD · Infantile neuroaxonal dystrophy · Infantile PLAN · Infantile phospholipase A2-associated neurodegeneration · Seitelberger disease · PLA2G6-associated neurodegeneration, infantile-onset
frNeurodégénérescence associée à PLA2G6 à début infantileDNAI · Maladie de Seitelberger · Dystrophie neuroaxonale infantile · Neurodégénérescence associée à la phospholipase A2 infantile
dePLA2G6-assoziierte Neurodegeneration, infantile FormINAD · Infantile PLAN · Infantile neuroaxonale Dystrophie · Phospholipase A2-assoziierte Neurodegeneration mit Beginn im Kindesalter · Seitelberger Krankheit
esNeurodegeneración asociada al gen PLA2G6 de inicio en la lactanciaEnfermedad de Seitelberger · INAD · Distrofia neuroaxonal infantil · Neurodegeneración asociada a fosfolipasa A2 en la lactancia · PLAN del lactante
itNeurodegenerazione ad esordio infantile correlata a PLA2G6INAD · PLAN infantile · Malattia di Seitelberger · Distrofia neuroassonale infantile · Neurodegenerazione ad esordio infantile associata a PLA2G6 · Neurodegenerazione infantile associata alla fosfolipasi A2
nlPLA2G6-gerelateerde neurodegeneratie, infantiele aanvangINAD · Infantiele neuroaxonale dystrofie · Neurodegeneratie geassocieerd met fosfolipase A2 bij zuigeling · Ziekte van Seitelberger · PLA2G6-eassocieerde neurodegeneratie beginnend op zuigelingenleeftijd · PLAN bij zuigeling
ptDistrofia neuroaxonal do lactenteDoença de Seitelberger · INAD
plDziecięca dystrofia neuroaksonalnaChoroba Seitelbergera · INAD · INAD1 · Neurodegeneracja zwiazana z fosfolipazą A2 · plAN
csInfantilní neuroaxonální dystrofieINAD · INAD1 · PLAN · Neurodegenerace spojená s fosfolipázou A2 · Seitelbergerova nemoc
ukДитяча нейроаксональна дистрофіяІНАД · INAD1 · Фосфоліпаза А2-асоційована нейродегенерація · PLAN · Хвороба Зайтельбергера
zh婴儿神经轴索营养不良非钙依赖型磷脂酶A2相关性神经退行性病变
trİnfantil nöroaksonal distrofiINAD · PLAN · INAD1 · Seitelberger hastalığı · Fosfolipaz A2 ile ilişkili nörodejenerasyon

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM256600Evalidated
OMIM610217BTNTvalidated
ICD-10G31.8NTBTattributedvalidated
ICD-115C64.10NTBTindexvalidated
UMLSC0270724Evalidated
GARD3957Evalidated
MedDRA10088200Evalidated

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.

Codes that Orphanet moved or referred to this one:

4

Genes

1 direct
GeneAssociationStatusHGNCEnsemblOMIMLocusNameSource of validation
PLA2G6Disease-causing germline mutation(s) inAssessedHGNC:9039ENSG0000018438160360422q13.1phospholipase A2 group VI
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Prevalence and incidence

2 records
TypeClassValueAreaQualificationValidationSource
Cases/families150 casesWorldwideCase(s)ValidatedORPHANET
Point prevalence<1 / 1 000 000—WorldwideClass onlyValidatedORPHANET

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

52 annotations · validated 2021-01-25
HPOTerm (as annotated by Orphanet)Diagnostic
Very frequent (99-80%)
HP:0001272Cerebellar atrophy
HP:0002376Developmental regression
HP:0002361Psychomotor deterioration
Frequent (79-30%)
HP:0002500Abnormal cerebral white matter morphology
HP:0007256Abnormal pyramidal sign
HP:0003134Abnormality of peripheral nerve conduction
HP:0000649Abnormality of visual evoked potentials
HP:0001251Ataxia
HP:0008936Axial hypotonia
HP:0002483Bulbar signs
HP:0012698Cerebellar gliosis
HP:0003405Diffuse axonal swelling
HP:0003444EMG: chronic denervation signs
HP:0002454Eye of the tiger anomaly of globus pallidus
HP:0001347Hyperreflexia
HP:0025435Increased circulating lactate dehydrogenase concentration
HP:0012675Iron accumulation in brain
HP:0001268Mental deterioration
HP:0000648Optic atrophy
HP:0003477Peripheral axonal neuropathy
HP:0009830Peripheral neuropathy
HP:0002191Progressive spasticity
HP:0007141Sensorimotor neuropathy
HP:0001285Spastic tetraparesis
HP:0002317Unsteady gait
Occasional (29-5%)
HP:0012332Abnormal autonomic nervous system physiology
HP:0011951Aspiration pneumonia
HP:0000708Atypical behavior
HP:0000729Autistic behavior
HP:0000618Blindness
HP:0002019Constipation
HP:0000750Delayed speech and language development
HP:0002307Drooling
HP:0001260Dysarthria
HP:0001332Dystonia
HP:0000712Emotional lability
HP:0001371Flexion contracture
HP:0001288Gait disturbance
HP:0000752Hyperactivity
HP:0100710Impulsivity
HP:0000639Nystagmus
HP:0012043Pendular nystagmus
HP:0000736Short attention span
HP:0001257Spasticity
HP:0000486Strabismus
HP:0005968Temperature instability
Very rare (<4-1%)
HP:0005949Apneic episodes in infancy
HP:0030842Choking episodes
HP:0010545Downbeat nystagmus
HP:0001250Seizure
HP:0025331Upgaze palsy
HP:0031358Vegetative state

Run the differential on the 3 obligate / very frequent terms

Annotation source: 27884548[PMID]_ 29409688[PMID]_20301718[PMID]

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Sources for this card