raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:157946

Huntington disease-like 3

Synonyms: HDL3

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

Huntington disease-like 3 is a rare Huntington disease-like syndrome characterized by childhood-onset progressive neurologic deterioration with pyramidal and extrapyramidal abnormalities, chorea, dystonia, ataxia, gait instability, spasticity, seizures, mutism, and (on brain MRI) progressive frontal cortical atrophy and bilateral caudate atrophy.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enHuntington disease-like 3HDL3
frMaladie de Huntington-like 3= en
deChorea Huntington-ähnliche Krankheit 3= en
esEnfermedad similar a Huntington, tipo 3Enfermedad de Huntington-like, tipo 3 · HDL3
itMalattia Huntington-simile 3= en
nlZiekte van Huntington-achtig 3= en
ptDoença de Huntington-like 3
plChoroba podobna do choroby Huntingtona typu 3= en
csSyndrom podobný Huntingtonově chorobě 3= en
ukХвороба Гентингтон-подібна 3= en
zh类亨廷顿病3= en
trHuntington hastalığı-benzeri 3= en

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM604802Evalidated
ICD-10G10NTBTattributedvalidated
ICD-118A01.11NTBTindexvalidated
MONDO0011487Evalidated
MeSHC565747Evalidated
UMLSC1858114Evalidated

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 (4):

No children.

4

Genes

0 direct

Orphanet records no gene directly on this code.

5

Prevalence and incidence

1 record
TypeClassValueAreaQualificationValidationSource
Point prevalence<1 / 1 000 000—EuropeClass 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.

6

HPO phenotypes

22 annotations · validated 2018-11-07
HPOTerm (as annotated by Orphanet)Diagnostic
Frequent (79-30%)
HP:0002457Abnormal head movements
HP:0007256Abnormal pyramidal sign
HP:0002071Abnormality of extrapyramidal motor function
HP:0002167Abnormality of speech or vocalization
HP:0000708Atypical behavior
HP:0002607Bowel incontinence
HP:0002136Broad-based gait
HP:0002340Caudate atrophy
HP:0002120Cerebral cortical atrophy
HP:0002072Chorea
HP:0100543Cognitive impairment
HP:0001332Dystonia
HP:0007308Extrapyramidal dyskinesia
HP:0007076Extrapyramidal muscular rigidity
HP:0001371Flexion contracture
HP:0005327Loss of facial expression
HP:0002300Mutism
HP:0007240Progressive gait ataxia
HP:0002361Psychomotor deterioration
HP:0001250Seizure
HP:0001257Spasticity
HP:0000020Urinary incontinence

Annotation source: 27605280[PMID]_10677304[PMID]

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Sources for this card