X-linked Charcot-Marie-Tooth disease type 5

What it is

A rare genetic peripheral sensorimotor neuropathy characterized by infancy-to childhood onset of progressive distal muscle weakness and atrophy (first appearing and more prominent in the lower extremities than the upper) which usually manifests with foot drop and gait disturbance, bilateral, profound, prelingual sensorineural hearing loss and progressive optic neuropathy.

Key facts

Prevalence

<1 / 1 000 000

Age of onset

Childhood, Infancy

Inheritance

X-linked 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.

Signs and symptoms

These ranges are how often a sign appears across everyone diagnosed, not a prediction for one person — most people have some of these and not others. Orphanet also records findings that are specifically absent in this disease; those are in the data but not listed here.

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