Autosomal recessive cerebellar ataxia

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Autosomal recessive cerebellar ataxia due to STUB1 deficiency

ORPHA:412057Disease

Also called SCAR16 · Spinocerebellar ataxia autosomal recessive type 16

What it is

A rare hereditary ataxia characterized by progressive truncal and limb ataxia resulting in gait instability. Dysarthria, dysphagia, nystagmus, spasticity of the lower limbs, mild peripheral sensory neuropathy, cognitive impairment and accelerated ageing have also been associated.

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.

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

STUB1Disease-causing germline mutation(s) (loss of function)

ICD-10 codes

G11.1filed under a broader ICD-10 category — shared with 40 other rare diseases

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

MONDO 0014339OMIM 615768UMLS C5190574

Orphadata Science: Free access data from Orphanet. © INSERM 1999. Data version 2026-06-23. Available under CC BY 4.0. This is a reference, not medical advice.

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