cerebellar ataxia-areflexia-pes cavus-optic atrophy-sensorineural hearing loss syndrome
Findings
No curated finding names cerebellar ataxia-areflexia-pes cavus-optic atrophy-sensorineural hearing loss syndrome yet. Everything below is reference data from Mondo, HPO and GenCC, not evidence about what affects it.
Definition
Cerebellar ataxia - areflexia - pes cavus - optic atrophy - sensorineural hearing loss (CAPOS syndrome) is a rare autosomal dominant neurological disorder characterized by early onset cerebellar ataxia, associated with areflexia, progressive optic atrophy, sensorineural deafness, a pes cavus deformity, and abnormal eye movements.
Definition from the Mondo Disease Ontology (MONDO:0011038), read 2026-09-29. CC BY 4.0.
- Inheritance
- Autosomal dominant inheritance
- Onset and course
- Infantile onset · Juvenile onset · Childhood onset
HPO, annotations 2026-09-02
Features
37 features
What the disease is reported to present with, and how often among people who have it — never how often a feature means the disease. HPO, annotations 2026-09-02.
- AreflexiaHPOHP:0001284
- 11 of 11 reported patients
- Very frequent (80% to 99% of cases)
- Arm dystoniaHPOHP:0031960
- 1 of 1 reported patient
- AtaxiaHPOHP:0001251
- 1 of 1 reported patient
- Very frequent (80% to 99% of cases)
- BradykinesiaHPOHP:0002067
- 1 of 1 reported patient
- Episodic ataxiaHPOHP:0002131
- 10 of 10 reported patients
- Hearing impairment
Genes
1 gene
Germline variants in the gene encoding each protein, as classified by GenCC submitters, each in their own words. Limited, disputed and refuted submissions are listed too.
- ATP1A3HGNC:801
- Definitive · Ambry Genetics · Autosomal dominant · 2018
- Strong · Genomics England PanelApp · Autosomal dominant · 2021
- Strong · Labcorp Genetics (formerly Invitae) · Autosomal dominant · 2023
- Supportive · Orphanet · Autosomal dominant · 2021
Where it sits
Other names
1 name
Resolves to: cerebellar ataxia-areflexia-pes cavus-optic atrophy-sensorineural hearing loss syndrome
- Also called
- CAPOS syndrome