Autosomal recessive axonal Charcot-Marie-Tooth disease due to copper metabolism defect

What it is

A rare autosomal recessive axonal hereditary motor and sensory neuropathy characterized by motor-predominant axonal polyneuropathy due to a defect in copper metabolism. Patients become symptomatic in infancy or childhood with subtle motor delay or regression, manifesting with progressive weakness, muscle wasting, and absent reflexes in the lower and upper extremities. In addition, vibratory sensation is mildly diminished. Involvement of the face with weakness and fasciculation of facial muscles has also been described.

Key facts

Prevalence

<1 / 1 000 000

Age of onset

Adolescent, Infancy

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.

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