raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:401964

Autosomal dominant Charcot-Marie-Tooth disease type 2 with giant axons

Synonyms: Autosomal dominant hereditary motor and sensory neuropathy type 2 with giant axons · CMT2 with giant axons · HMSN2 with giant axons

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

A rare subtype of axonal hereditary motor and sensory neuropathy characterized by distal muscle weakness and atrophy (principally of peroneal muscles) associated with distal sensory loss (tactile, vibration), pes cavus present since infancy or childhood, and axonal swelling with neurofilament accumulation on nerve biopsy. Other features may include hand muscle involvement, hypo/arreflexia, gait disturbances, muscle cramps, toe abnormalities and mild cardiomyopathy.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enAutosomal dominant Charcot-Marie-Tooth disease type 2 with giant axonsAutosomal dominant hereditary motor and sensory neuropathy type 2 with giant axons · CMT2 with giant axons · HMSN2 with giant axons
frMaladie de Charcot-Marie-Tooth autosomique dominante type 2 avec axones géantsCMT2 avec axones géants · HMSN2 avec axones géants · Neuropathie sensitivo-motrice héréditaire autosomique dominante type 2 avec axones géants
deCharcot-Marie-Tooth-Krankheit, autosomal-dominante, Typ 2, mit Riesen-AxonenAutosomal-dominante hereditäre motorisch-sensorische Neuropathie Typ 2 mit Riesen-Axonen · CMT2 mit Riesen-Axonen · HMSN2 mit Riesen-Axonen
esEnfermedad de Charcot-Marie-Tooth autosómica dominante tipo 2 con axones gigantesCMT2 con axones gigantes · HMSN2 con axones gigantes · Neuropatía hereditaria sensitivo-motora autosómica dominante tipo 2 con axones gigantes
itMalattia di Charcot-Marie-Tooth autosomica dominante tipo 2 con assoni gigantiCMT2 con assoni giganti · HMSN2 con assoni giganti · Neuropatia motoria e sensoriale ereditaria tipo 2, autosomica dominante, con assoni giganti
nlAutosomaal dominante ziekte van Charcot-Marie-Tooth type 2 met reuzenaxonenAutosomaal dominante erfelijke motorische en sensorische neuropathie type 2 met reuzenaxonen · CMT2 met reuzenaxonen · HMSN2 met reuzenaxonen
ptDoença de Charcot-Marie-Tooth autossómica dominante tipo 2 com axónios gigantes
plAutosomalna dominująca choroba Charcota, Mariego i Tootha typu 2 z olbrzymimi aksonamiAutosomalna dominująca dziedziczna neuropatia ruchowa i czuciowa typu 2 z olbrzymimi aksonami · CMT2 z olbrzymimi aksonami · HMSN2 z olbrzymimi aksonami
csAutozomálně dominantní Charcotova-Marieova-Toothova nemoc, typ 2 s obrovskými axonyCMT2 s obrovskými axony · HMSN2 s obrovskými axony · Autozomálně dominantní hereditární motorická a senzorická neuropatie, typ 2 s obrovskými axony · Autozomálně dominantní Charcot-Marie-Toothova nemoc, typ 2 s obrovskými axony
ukАутосомно-домінантна хвороба Шарко-Марі-Тута, тип 2 з гігантськими аксонамиАутосомно-домінантна спадкова моторна та сенсорна нейропатія типу 2 з гігантськими аксонами · CMT2 з гігантськими аксонами · HMSN2 з гігантськими аксонами
zh常染色体显性遗传夏科-马里-图斯病2型伴巨大轴突常染色体显性遗传运动和感觉神经病2型伴巨大轴突
trDev aksonlar ile seyreden otozomal dominant Charcot-Marie-Tooth hastalığı tip 2Giant akson ile seyreden CMT2 · Giant aksonlar ile seyreden HMSN2 · Dev aksonlar ile seyreden otozomal baskın motor ve sensör nöropati tip 2

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM610100Evalidated
ICD-10G60.0NTBTattributedvalidated
MONDO0012411Evalidated
UMLSC5190585Evalidated
GARD12447Evalidated

E exact · NTBT this ORPHAcode is narrower than the target · BTNT broader than the target · ND not decided.

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Classification

Preferential parent (Orphanet linearisation):

Parents in the classifications (1):

No children.

4

Genes

1 direct
GeneAssociationStatusHGNCEnsemblOMIMLocusNameSource of validation
DCAF8Disease-causing germline mutation(s) inAssessedHGNC:24891ENSG000001327166158201q23.2DDB1 and CUL4 associated factor 824500646[PMID]
5

Prevalence and incidence

2 records
TypeClassValueAreaQualificationValidationSource
Cases/families2 familiesWorldwideFamily(ies)Validated24500646[PMID]_15111691[PMID]_14557576[PMID]
Point prevalence<1 / 1 000 000—WorldwideClass onlyValidatedORPHANET_24500646[PMID]_15111691[PMID]_14557576[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.

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HPO phenotypes

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

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Sources for this card