raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:101077

X-linked Charcot-Marie-Tooth disease type 3

Synonyms: CMT3X · CMTX3

Type
Disease
Group
Disorder
Inheritance
X-linked recessive
Age of onset
Adolescent, Childhood
Status
active

A rare genetic peripheral sensorimotor neuropathy characterized by an X-linked recessive inheritance pattern and the childhood onset of progressive, distal muscle weakness and atrophy (beginning in the lower extremities and then affecting the upper extremities), as well as distal, pansensory loss in the upper and lower extremities, pes cavus, and absent or reduced distal tendon reflexes. Pain and paresthesia are frequently the initial sensory symptoms.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enX-linked Charcot-Marie-Tooth disease type 3CMT3X · CMTX3
frMaladie de Charcot-Marie-Tooth liée à l'X type 3= en
deCharcot-Marie-Tooth-Krankheit, X-chromosomale, Typ 3CMTX3
esEnfermedad de Charcot-Marie-Tooth ligada al cromosoma X tipo 3= en
itMalattia di Charcot-Marie-Tooth legata all'X, tipo 3= en
nlX-gebonden ziekte van Charcot-Marie-Tooth type 3= en
ptDoença de Charcot-Marie-Tooth ligada ao X tipo 3
plChoroba Charcota, Mariego i Tootha typu 3 sprzężona z chromosomem X= en
csX-vázaná Charcotova-Marieova-Toothova nemoc, typ 3CMT3X · CMTX3 · X-vázaná Charcot-Marie-Toothova nemoc, typ 3
ukХ-зчеплена хвороба Шарко-Марі-Тута, тип 3= en
zhX连锁遗传夏科-马里-图斯病3型CMT3
trX'e bağlı Charcot-Marie-Tooth hastalığı tip 3= en

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM302802Evalidated
ICD-10G60.0NTBTattributedvalidated
ICD-11LD90.YNTBTindexvalidated
MONDO0010551Evalidated
MeSHC535303Evalidated
UMLSC1844865Evalidated

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

0 direct

Orphanet records no gene directly on this code.

5

Prevalence and incidence

2 records
TypeClassValueAreaQualificationValidationSource
Cases/families4 familiesWorldwideFamily(ies)Validated18458969[PMID]
Point prevalence<1 / 1 000 000—WorldwideClass onlyValidatedORPHANET_18458969[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

28 annotations · validated 2021-03-05
HPOTerm (as annotated by Orphanet)Diagnostic
Frequent (79-30%)
HP:0001760Abnormal foot morphology
HP:0001284Areflexia
HP:0003431Decreased motor nerve conduction velocity
HP:0031936Delayed ability to walk
HP:0003693Distal amyotrophy
HP:0008944Distal lower limb amyotrophy
HP:0008110Equinovarus deformity
HP:0009027Foot dorsiflexor weakness
HP:0001288Gait disturbance
HP:0001288Gait disturbance
HP:0030237Hand muscle weakness
HP:0008954Intrinsic hand muscle atrophy
HP:0001270Motor delay
HP:0001761Pes cavus
HP:0009063Progressive distal muscle weakness
HP:0007141Sensorimotor neuropathy
HP:0003474Somatic sensory dysfunction
Occasional (29-5%)
HP:0007108Demyelinating peripheral neuropathy
HP:0007149Distal upper limb amyotrophy
HP:0001385Hip dysplasia
HP:0001265Hyporeflexia
HP:0002540Inability to walk
HP:0003477Peripheral axonal neuropathy
HP:0008081Pes valgus
HP:0008994Proximal muscle weakness in lower limbs
HP:0002091Restrictive ventilatory defect
HP:0002650Scoliosis
HP:0001337Tremor

Annotation source: 26385972[PMID]_29626178[PMID]

7

Sources for this card