raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:329478

Adult-onset distal myopathy due to VCP mutation

Type
Disease
Group
Disorder
Inheritance
Autosomal dominant
Age of onset
Adult
Status
active

A rare, genetic distal myopathy disorder characterized by middle age-onset of distal leg muscle weakness, atrophy in the anterior compartment resulting in foot drop, without proximal or scapular skeletal muscle weakness. Rapidly progressive dementia, Paget disease of bone and hand weakness have been reported. Muscle biopsy shows pronounced myopathic changes with rimmed vacuoles.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enAdult-onset distal myopathy due to VCP mutation
frMyopathie distale de l'adulte due à des mutations de VCP
deDistale Myopathie durch VCP-Genmutation mit Beginn im Erwachsenenalter
esMiopatía distal del adulto por una mutación en el gen VCP
itMiopatia distale da mutazione di VCP a esordio nell'età adulta
nlDistale myopathie door VCP-mutatie met aanvang op volwassen leeftijd
ptMiopatia distal por mutação VCP com início no adulto
plMiopatia dystalna dorosłych wskutek mutacji VCP
csAdultní distální myopatie způsobená mutací VCP
ukДистальна міопатія у дорослих, зумовлена мутацією VCP
zhVCP基因突变致成人发病型远端型肌营养不良症
trVCP mutasyonuna bağlı yetişkin başlangıçlı distal miyopati

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
ICD-10G71.0NTBTattributedvalidated
MONDO0018006Evalidated
UMLSC4749506Evalidated

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
VCPDisease-causing germline mutation(s) inAssessedHGNC:12666ENSG000001652806010239p13.3valosin containing protein21684747[PMID]
5

Prevalence and incidence

2 records
TypeClassValueAreaQualificationValidationSource
Cases/families9 casesWorldwideCase(s)Validated21684747[PMID]
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

30 annotations · validated 2019-01-16
HPOTerm (as annotated by Orphanet)Diagnostic
Very frequent (99-80%)
HP:0002460Distal muscle weaknessDiagnostic criterion
Frequent (79-30%)
HP:0001437Abnormality of the musculature of the lower limbs
HP:0000726Dementia
HP:0003458EMG: myopathic abnormalities
HP:0002380Fasciculations
HP:0012548Fatty replacement of skeletal muscle
HP:0009027Foot dorsiflexor weakness
HP:0002359Frequent falls
HP:0001288Gait disturbance
HP:0008954Intrinsic hand muscle atrophy
HP:0008180Mildly elevated creatine kinase
HP:0003394Muscle spasm
HP:0003326Myalgia
HP:0008978Necrotizing myopathy
HP:0002344Progressive neurologic deterioration
HP:0003805Rimmed vacuolesDiagnostic criterion
HP:0003691Scapular winging
HP:0009005Weakness of the intrinsic hand muscles
Occasional (29-5%)
HP:0000739Anxiety
HP:0003418Back pain
HP:0002607Bowel incontinence
HP:0000762Decreased nerve conduction velocity
HP:0000716Depression
HP:0001349Facial diplegia
HP:0001300Parkinsonism
HP:0001337Tremor
HP:0000020Urinary incontinence
Very rare (<4-1%)
HP:0002792Reduced vital capacity
Excluded (0%)
HP:0001638Cardiomyopathy
HP:0003701Proximal muscle weakness

Run the differential on the 1 obligate / very frequent terms

Annotation source: 21684747[PMID]_22040362[PMID]_26105173[PMID]_26574898[PMID]

7

Sources for this card