raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:101081

Charcot-Marie-Tooth disease type 1A

Synonyms: CMT1A · Microduplication 17p12

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

This disease is described under Charcot-Marie-Tooth disease type 1

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enCharcot-Marie-Tooth disease type 1ACMT1A · Microduplication 17p12
frMaladie de Charcot-Marie-Tooth type 1A= en
deCharcot-Marie-Tooth-Krankheit Typ 1ACMT1A · Mikroduplikation 17p12
esEnfermedad de Charcot-Marie-Tooth tipo 1ACMT1A · Microduplicación 17p12
itMalattia di Charcot-Marie-Tooth, tipo 1AMicroduplicazione 17p12
nlZiekte van Charcot-Marie-Tooth type 1ACMT1A · Microduplicatie 17p12
ptDoença de Charcot-Marie-Tooth tipo 1A
plChoroba Charcota, Mariego i Tootha typu 1ACMT1A · Mikroduplikacja 17p12
csCharcotova-Marieova-Toothova nemoc, typ 1ACMT1A · Mikroduplikace 17p12 · Charcot-Marie-Toothova nemoc, typ 1A
ukХвороба Шарко-Марі-Тута, тип 1АCMT1A · Мікродуплікація 17p12
zh夏科-马里-图斯病1A型17p12微重复
trCharcot-Marie-Tooth hastalığı tip 1ACMT1A · Mikroduplikasyon 17p12
2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM118220Evalidated
ICD-10G60.0NTBTattributedvalidated
ICD-11LD41.G1NTBTindexvalidated
MONDO0007309Evalidated
UMLSC0270911Evalidated
GARD1245Evalidated

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.

4

Genes

1 direct
GeneAssociationStatusHGNCEnsemblOMIMLocusNameSource of validation
PMP22Disease-causing germline mutation(s) inAssessedHGNC:9118ENSG0000010909960109717p12peripheral myelin protein 2220301384[PMID]
5

Prevalence and incidence

3 records
TypeClassValueAreaQualificationValidationSource
Point prevalence6-9 / 10 00082.37 / 100 000NorwayValue and classValidated20482598[PMID]_24646194[PMID]
Point prevalence1-5 / 10 00015.2 / 100 000United KingdomValue and classValidated21984771[PMID]
Point prevalence1-5 / 10 000—WorldwideClass onlyValidatedORPHANET_20301384[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

20 annotations · validated 2023-09-08
HPOTerm (as annotated by Orphanet)Diagnostic
Frequent (79-30%)
HP:0003431Decreased motor nerve conduction velocity
HP:0003448Decreased sensory nerve conduction velocity
HP:0007108Demyelinating peripheral neuropathy
HP:0002460Distal muscle weakness
HP:0002936Distal sensory impairment
HP:0001288Gait disturbance
HP:0001265Hyporeflexia
HP:0001761Pes cavus
HP:0003701Proximal muscle weakness
HP:0010871Sensory ataxia
HP:0003202Skeletal muscle atrophy
Occasional (29-5%)
HP:0007131Acute demyelinating polyneuropathy
HP:0008981Calf muscle hypertrophy
HP:0009113Diaphragmatic weakness
HP:0002141Gait imbalance
HP:0002751Kyphoscoliosis
HP:0003401Paresthesia
HP:0030834Shoulder pain
HP:0010833Spontaneous pain sensation
Very rare (<4-1%)
HP:0006801Hyperactive deep tendon reflexes

Annotation source: 8682501[PMID]_17353481[PMID]_15703022[PMID]_20301532[PMID]

7

Sources for this card