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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.
Biomarker and diagnostic research for adult-onset progressive leukoencephalopathy-early-onset deafness has been reported in the published literature.
Estimated prevalence: <1 in 1,000,000 (VERY_RARE).
No clinical trials have been registered for adult-onset progressive leukoencephalopathy-early-onset deafness.
8 publications have been identified in PubMed for adult-onset progressive leukoencephalopathy-early-onset deafness. Research spans Case Report / Case Series (43%), Epidemiology / Natural History (43%), and Diagnostic / Biomarker (14%).
Verity CM (2026). [PMID: 41024403](https://pubmed.ncbi.nlm.nih.gov/41024403/). *Developmental medicine and child neurology*. [Epidemiology / Natural History]
Finsterer J (2026). [PMID: 42077717](https://pubmed.ncbi.nlm.nih.gov/42077717/). *Cureus*. [Case Report / Case Series]
Meisel M (2025). [PMID: 40491524](https://pubmed.ncbi.nlm.nih.gov/40491524/). *American journal of ophthalmology case reports*. [Case Report / Case Series]
Ono D (2025). [PMID: 41107539](https://pubmed.ncbi.nlm.nih.gov/41107539/). *Journal of neurology*. [Epidemiology / Natural History]
Kelly R (2025). [PMID: 40254735](https://pubmed.ncbi.nlm.nih.gov/40254735/). *Ear and hearing*. [Case Report / Case Series]
Data assembled from 3 of 12 sources · Last updated Sep 20, 2026, 5:36 PM UTC
European rare disease database
Common questions about adult-onset progressive leukoencephalopathy-early-onset deafness
Paucar M (2025). [PMID: 39831730](https://pubmed.ncbi.nlm.nih.gov/39831730/). *Movement disorders : official journal of the Movement Disorder Society*. [Diagnostic / Biomarker]
Ono D (2025). [PMID: 40630598](https://pubmed.ncbi.nlm.nih.gov/40630598/). *medRxiv : the preprint server for health sciences*. [Epidemiology / Natural History]