raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:157850

Pantothenate kinase-associated neurodegeneration

Synonyms: Hallervorden-Spatz syndrome · NBIA1 · Neurodegeneration with brain iron accumulation type 1 · PKAN

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

A rare neurodegenerative disorder characterized by progressive dystonia, dysarthria, retinal degeneration and abnormal iron accumulation in the globus pallidus and substantia nigra with a characteristic ''eye-of-the-tiger'' sign on T2-weighted MRI. Forms include classic disease with early onset and rapid progression and atypical disease with later onset and slower progression.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enPantothenate kinase-associated neurodegenerationHallervorden-Spatz syndrome · NBIA1 · Neurodegeneration with brain iron accumulation type 1 · PKAN
frNeurodégénérescence par déficit en pantothénate kinaseNBIA1 · Neurodégénérescence avec surcharge cérébrale en fer type 1 · PKAN · Syndrome de Hallervorden-Spatz
dePantothenat-Kinase-assoziierte NeurodegenerationHallervorden-Spatz-Syndrom · NBIA1 · Neurodegeneration mit Eisenspeicherung im Gehirn Typ 1 · PKAN
esNeurodegeneración asociada a pantotenato-quinasaNBIA1 · Neurodegeneración con acúmulo cerebral de hierro tipo 1 · PKAN · Síndrome de Hallervorden-Spatz
itNeurodegenerazione associata a pantotenato chinasiNBIA1 · Neurodegenerazione con deposito cerebrale di ferro, tipo 1 · PKAN · Sindrome di Hallervorden-Spatz
nlPantothenaatkinasegeassocieerde neurodegeneratieNBIA1 · Neurodegeneratie met ijzerstapeling in de hersenen type 1 · PKAN · Syndroom van Hallervorden-Spatz
ptNeurodegenerescência associada a pantotenato quinase
plNeurodegeneracja związana z kinazą pantotenianuNBIA1 · Neurodegeneracja z magazynowaniem żelaza w mózgu typu 1 · PKAN · Zespół Hallervordena i Spatza
csNeurodegenerace spojená s pantotenátkinázouNBIA1 · Neurodegenerace spojená s akumulací železa, typ 1 · PKAN · Hallervordenův-Spatzův syndrom · Hallervorden-Spatzův syndrom
ukПантотенаткіназа-асоційована нейродегенераціяСиндром Халлервордена-Шпатца · NBIA1 · Нейродегенерація з накопиченням заліза в мозку, тип 1 · PKAN
zh大脑铁沉积型神经退行性病变1型神经退行性病变伴有脑铁沉积1型
trPantotenat kinaz-ilişkili nörodejenerasyonPKAN · NBIA1 · Hallervorden-Spatz sendromu · Beyin demir birikimi tip 1 ile seyreden nörodejenerasyon

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM234200Evalidated
ICD-10G23.0Especificvalidated
ICD-115C64.10NTBTindexvalidated
MONDO0009319Evalidated
MeSHD006211Evalidated
UMLSC0018523Evalidated
GARD6564Evalidated

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 (5):

Children (2):

4

Genes

0 direct · 2 via subtypes

Orphanet records no gene directly on this code.

Recorded by Orphanet on subtypes of this disorder:

GeneSubtypeAssociationStatusHGNCEnsemblOMIMLocusNameSource of validation
PANK2ORPHA:216866Classic pantothenate kinase-associated neurodegenerationDisease-causing germline mutation(s) inAssessedHGNC:15894ENSG0000012577960615720p13pantothenate kinase 2
PANK2ORPHA:216873Atypical pantothenate kinase-associated neurodegenerationDisease-causing germline mutation(s) inAssessedHGNC:15894ENSG0000012577960615720p13pantothenate kinase 2
5

Prevalence and incidence

1 record
TypeClassValueAreaQualificationValidationSource
Point prevalence1-9 / 1 000 0000.15 / 100 000EuropeValue and classValidated22027213[PMID]_[EXPERT]_ ORPHANET

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

60 annotations · validated 2021-01-25
HPOTerm (as annotated by Orphanet)Diagnostic
Very frequent (99-80%)
HP:0002071Abnormality of extrapyramidal motor function
HP:0001266Choreoathetosis
HP:0001332Dystonia
HP:0001288Gait disturbance
HP:0002505Loss of ambulation
HP:0000546Retinal degeneration
HP:0001257Spasticity
HP:0000505Visual impairment
Frequent (79-30%)
HP:0008181Abetalipoproteinemia
HP:0000496Abnormality of eye movement
HP:0001927Acanthocytosis
HP:0000708Atypical behavior
HP:0002483Bulbar signs
HP:0012179Craniofacial dystonia
HP:0001260Dysarthria
HP:0002454Eye of the tiger anomaly of globus pallidus
HP:0012678Iron accumulation in substantia nigra
HP:0031959Leg dystonia
HP:0002451Limb dystonia
HP:0009763Limb pain
HP:0001268Mental deterioration
HP:0000662Nyctalopia
HP:0000938Osteopenia
HP:0001300Parkinsonism
HP:0007994Peripheral visual field loss
HP:0000580Pigmentary retinopathy
HP:0012045Retinal flecks
HP:0002063Rigidity
HP:0000510Rod-cone dystrophy
Occasional (29-5%)
HP:0002167Abnormality of speech or vocalization
HP:0007018Attention deficit hyperactivity disorder
HP:0000618Blindness
HP:0011504Bull's eye maculopathy
HP:0000722Compulsive behaviors
HP:0000726Dementia
HP:0000716Depression
HP:0032014Dysmetric vertical saccades
HP:0000712Emotional lability
HP:0003084Fractures of the long bones
HP:0001263Global developmental delay
HP:0001347Hyperreflexia
HP:0000619Impaired convergence
HP:0100710Impulsivity
HP:0001249Intellectual disability
HP:0001270Motor delay
HP:0000648Optic atrophy
HP:0031814Palilalia
HP:0007132Pallidal degeneration
HP:0001152Saccadic smooth pursuit
HP:0001350Slurred speech
HP:0009088Speech articulation difficulties
HP:0025402Square-wave jerks
HP:0031937Tachylalia
HP:0100033Tics
HP:0030051Tip-toe gait
HP:0011916Toe extensor amyotrophy
HP:0001123Visual field defect
Very rare (<4-1%)
HP:0002080Intention tremor
HP:0001345Psychotic mentation
HP:0001250Seizure

Run the differential on the 8 obligate / very frequent terms

Annotation source: 29844889[PMID]_30804242[PMID]_20301663[PMID]

7

Sources for this card