raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:464440

Primary dystonia, DYT27 type

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

A rare genetic dystonia characterized by focal or segmental isolated dystonia involving the face, neck, upper limbs (commonly writing dystonia), larynx, or trunk, with an onset from childhood to early adulthood. Dystonia may be tremulous, giving rise to head or hand tremor. Mode of inheritance is autosomal recessive.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enPrimary dystonia, DYT27 type
frDystonie primaire type DYT27
deDystonie, primäre, Typ DYT27
esDistonía primaria tipo DYT27
itDistonia primitiva tipo DYT27
nlPrimaire dystonie, DYT27-type
ptDistonia primária, tipo DYT27
plDystonia pierwotna, typ DYT27
csPrimární dystonie, typ DYT27
ukПервинна дистонія, тип DYT27
zhDYT27型原发性张力障碍
trPrimer distoni, DYT27 tipi

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM616411Evalidated
ICD-10G24.1NTBTattributedvalidated
MONDO0014627Evalidated
UMLSC4225336Evalidated

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 (1):

No children.

4

Genes

1 direct
GeneAssociationStatusHGNCEnsemblOMIMLocusNameSource of validation
COL6A3Disease-causing germline mutation(s) inAssessedHGNC:2213ENSG000001633591202502q37.3collagen type VI alpha 3 chain26004199[PMID]
5

Prevalence and incidence

2 records
TypeClassValueAreaQualificationValidationSource
Cases/families5 casesWorldwideCase(s)Validated26260724[PMID]_26004199[PMID]
Point prevalence<1 / 1 000 000—WorldwideClass onlyValidatedORPHANET_26260724[PMID]_26004199[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

8 annotations · validated 2018-10-29
HPOTerm (as annotated by Orphanet)Diagnostic
Very frequent (99-80%)
HP:0012049Laryngeal dystonia
HP:0012048Oromandibular dystonia
Frequent (79-30%)
HP:0002345Action tremor
HP:0002530Axial dystonia
HP:0004373Focal dystonia
HP:0002451Limb dystonia
HP:0007351Upper limb postural tremor
HP:0002356Writer's cramp

Run the differential on the 2 obligate / very frequent terms

Annotation source: 26004199[PMID]

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Sources for this card