Autosomal recessive Charcot-Marie-Tooth disease type 2X

What it is

A rare autosomal recessive axonal hereditary motor and sensory neuropathy characterized by childhood to adult onset of slowly progressive, sometimes asymmetric distal muscle weakness and atrophy, as well as sensory impairment, predominantly of the lower limbs. Additional common features include pes cavus, kyphoscoliosis, ankle contractures, tremor, or urogenital dysfunction. Fasciculations and proximal involvement may be seen in some cases. Patients usually remain ambulatory.

Key facts

Prevalence

<1 / 1 000 000

Age of onset

Adolescent, Adult, Childhood

Inheritance

Autosomal recessive

Classified as

Disease

Prevalence figures describe populations, not individuals, and are often estimates from a single study. Where the figure is an incidence or a birth prevalence, it says so.

Gene

ICD-10 codes

ICD-10 has no distinct code for most rare diseases, so many are filed under the nearest available one. A shared code identifies the group, not this disease — the ORPHAcode above is what identifies it.

Related health topics

Reached through the ICD-10 categories this disease is filed under, so these describe the broader group rather than this disease specifically.

Cross-references