Adult-onset progressive…

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Adult-onset progressive leukoencephalopathy-early-onset deafness

ORPHA:652532Disease

Also called Adult-onset progressive leukoencephalopathy-early-onset hearing loss

What it is

A rare genetic neurological disorder characterized by congenital or early-onset sensorineural deafness and adult-onset progressive leukoencephalopathy. Progressive cognitive impairment and behavioral abnormalities are observed in the second or third decade of life, sometimes preceded by mild developmental delay and learning difficulties. Visual impairment in adult age has been reported. No central nervous system calcification is reported.

Key facts

Prevalence
<1 / 1 000 000
Age of onset
Adult
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.

Gene

KARS1Disease-causing germline mutation(s)

ICD-10 codes

G37.8filed under a broader ICD-10 category — shared with 5 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 0958094MONDO 958094OMIM 619196UMLS C5921954

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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