U.S. flag

An official website of the United States government

GTR Home > Conditions/Phenotypes > Spinocerebellar ataxia, autosomal recessive, with axonal neuropathy 1

Spinocerebellar ataxia, autosomal recessive, with axonal neuropathy 1

Summary

Excerpted from the GeneReview: Spinocerebellar Ataxia with Axonal Neuropathy Type 1
Spinocerebellar ataxia with axonal neuropathy type 1 (SCAN1) is characterized by late-childhood-onset slowly progressive cerebellar ataxia and distal sensorimotor axonal neuropathy. Gaze nystagmus and dysarthria usually develop after the onset of ataxic gait. As the disease advances, pain and touch sensation in the hands and feet become impaired; vibration sense is lost in hands and lower thighs. Individuals with advanced disease develop a steppage gait and pes cavus and eventually become wheelchair dependent. Cognitive dysfunction – present in some – manifests as mild intellectual disability and poor executive function. To date only seven affected individuals have been described from three apparently unrelated consanguineous families (one from Saudi Arabia and two from Oman); therefore, it is likely that the full phenotypic spectrum of this disorder is not yet known.
Full text of GeneReview (by section):
Summary
Diagnosis
Clinical Characteristics
Genetically Related (Allelic) Disorders
Differential Diagnosis
Management
Genetic Counseling
Resources
Molecular Genetics
Chapter Notes
References
Authors:
Mustafa AM Salih
Hiroshi Takashima
Cornelius F Boerkoel
view full author information

Available tests

21 tests are in the database for this condition.

Check Related conditions for additional relevant tests.

Clinical tests (21 available)

Molecular Genetics Tests

Genes See tests for all associated and related genes

  • Also known as: , TDP1
    Summary: tyrosyl-DNA phosphodiesterase 1

Clinical features

Help
Imported from Human Phenotype Ontology (HPO)

Show allHide all

IMPORTANT NOTE: NIH does not independently verify information submitted to the GTR; it relies on submitters to provide information that is accurate and not misleading. NIH makes no endorsements of tests or laboratories listed in the GTR. GTR is not a substitute for medical advice. Patients and consumers with specific questions about a genetic test should contact a health care provider or a genetics professional.