raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:476394

PMP2-related Charcot-Marie-Tooth disease type 1

Synonyms: PMP2-related CMT1 · PMP2-related Charcot-Marie-Tooth neuropathy type 1 · PMP2-related hereditary motor and sensory neuropathy type 1

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

A rare autosomal dominant hereditary demyelinating motor and sensory neuropathy characterized by progressive distal muscle weakness and atrophy, distal sensory impairment, and decreased or absent reflexes in the affected limbs, with an onset in the first or second decade of life. Median motor nerve conduction velocities are typically less than 38 m/s. Patients often have foot deformities. Sural nerve biopsy shows decrease in myelinated fibers, myelin abnormalities, and onion bulb formation. Fatty replacement of muscle tissue predominantly affects the anterior and lateral compartment of the lower legs.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enPMP2-related Charcot-Marie-Tooth disease type 1PMP2-related CMT1 · PMP2-related Charcot-Marie-Tooth neuropathy type 1 · PMP2-related hereditary motor and sensory neuropathy type 1
frMaladie de Charcot-Marie-Tooth type 1 associée à PMP2CMT1 associée à PMP2 · Neuropathie Charcot-Marie-Tooth type 1 associée à PMP2 · Neuropathie sensitivo-motrice héréditaire type 1 associée à PMP2
dePMP2-abhängige Charcot-Marie-Tooth-Krankheit Typ 1PMP2-abhängige CMT1 · PMP2-abhängige hereditäre motorisch-sensorische Neuropathie Typ 1 · SURF1-abhängige Charcot-Marie-Tooth-Neuropathie Typ 1
esEnfermedad de Charcot-Marie-Tooth tipo 1 asociada al gen PMP2
itMalattia di Charcot-Marie-Tooth tipo 1 correlata a PMP2
nlPMP2-gerelateerde ziekte van Charcot-Marie-Tooth type 1PMP2-gerelateerde CMT1 · PMP2-gerelateerde erfelijke motorische en sensorische neuropathie type 1 · PMP2-gerelateerde neuropathie van Charcot-Marie-Tooth type 1
ptDoença Charcot-Marie-Tooth tipo 1 PMP2-relacionada
plChoroba Charcota, Mariego i Tootha typu 1 zależna od PMP2CMT1 zależna od PMP2 · Dziedziczna neuropatia Charcota, Mariego i Tootha typu 1 zależna od PMP2 · Neuropatia Charcota, Mariego i Tootha typu 1 zależna od PMP2
csPMP2 asociovaná Charcot-Marie-Toothova nemoc, typ 1PMP2-related CMT1 · PMP2-related Charcot-Marie-Tooth neuropathy type 1 · PMP2-related hereditary motor and sensory neuropathy type 1 · PMP2 asociovaná CMT1 · PMP2 asociovaná Charcot-Marie-Toothova neuropatie typ 1 · PMP2 asociovaná dědičná motorická a senzorická neuropatie typ 1
ukХвороба Шарко-Марі-Тута, тип 1, повязана з PMP2PMP2-асоційована нейропатія Шарко-Марі-Тута типу 1 · CMT1, повязаний з PMP2 · Спадкова моторна та сенсорна нейропатія типу 1, повязана з PMP2
zhPMP2相关Charcot-Marie-Tooth病1型PMP2相关1型遗传性运动和感觉神经病
trPMP2 -ilişkili Charcot-Marie-Tooth hastalığı tip 1PMP2-ilişkili CMT1 · PMP2-ilişkili Charcot-Marie-Tooth nöropati tip 1 · PMP2 -ilişkili kalıtsal motor ve duyusal nöropati tip 1

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM618279Evalidated
ICD-10G60.0NTBTattributedvalidated
MONDO0033135Evalidated
UMLSC5567891Evalidated

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
PMP2Disease-causing germline mutation(s) inAssessedHGNC:9117ENSG000001475881707158q21.13peripheral myelin protein 226828946[PMID]
5

Prevalence and incidence

2 records
TypeClassValueAreaQualificationValidationSource
Cases/families13 casesWorldwideCase(s)Validated26828946[PMID]
Point prevalence<1 / 1 000 000—WorldwideClass onlyValidatedORPHANET_26828946[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

Orphanet has no HPO annotation for this code in this release.

7

Sources for this card