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Start free with EleplanInfantile-onset axonal motor and sensory neuropathy-optic atrophy-neurodegenerative syndrome
ORPHA:457205Disease
Also called ANOAC · Axonal neuropathy-optic atrophy-cognitive deficit syndrome
What it is
A rare neurologic disease characterized by axonal sensorimotor neuropathy, progressive optic atrophy, cognitive deficit, bulbar dysfunction, seizures, and early hypotonia and feeding difficulties. Additional possible features include dystonia, scoliosis, joint contractures, ocular anomalies, and urogenital anomalies. Brain MRI reveals variable degrees of cerebral atrophy. The disease is fatal in childhood due to respiratory failure.
Key facts
- Prevalence
- <1 / 1 000 000
- Age of onset
- 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
Common30–79%
25- Abnormal peripheral action potential amplitude
- Absent speech
- Bilateral tonic-clonic seizure
- Cerebral atrophy
- Cryptorchidism
- Decreased nerve conduction velocity
- Dyskinesia
- Dystonia
- EEG abnormality
- Feeding difficulties in infancy
- Floppy infant
- Foot joint contracture
- Functional motor deficit
- Gastroesophageal reflux
- Gastrostomy tube feeding in infancy
- Glaucoma
- Global developmental delay
- Horizontal supranuclear gaze palsy
- Inability to walk
- Irritability
- Motor axonal neuropathy
- Optic atrophy
- Sensory axonal neuropathy
- Severe global developmental delay
- Skeletal muscle atrophy
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.
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
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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