Autosomal recessive cerebellar ataxia

What it is

A group of rare early-onset ataxias with dementia characterized by degeneration or abnormal development of the cerebellum and spinal cord. It is a heterogeneous group including disorders that involves both the central and peripheral nervous system (and in some cases other systems and organs), therefore besides ataxia, patients often present with polyneuropathy and clinical symptoms outside the nervous system. It comprises more than half of the known genetic forms of ataxia including congenital ataxias, ataxias associated with metabolic disorders, ataxias with a DNA repair defect, degenerative ataxias and ataxias associated with other features.

Key facts

Prevalence

1-9 / 100 000

Age of onset

All ages

Inheritance

Autosomal recessive

Classified as

Clinical group

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.

Genes reported in subtypes

Orphanet records these genes on 6 more specific entries under this disorder, not on this entry itself:

A well-studied disease is usually split into subtypes, and the gene is curated on whichever one the evidence belongs to. Open a subtype to see which gene goes with it.

Cross-references