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Start free with EleplanPontocerebellar hypoplasia type 3
ORPHA:97249Clinical subtype
Also called Cerebellar atrophy with progressive microcephaly · PCH3
What it is
A rare, genetic form of pontocerebellar hypoplasia (PCH) characterized by neocortical and pontocerebellar hypoplasia with pons and cerebellum equally affected and that clinically manifests with neonatal hypotonia and impaired swallowing followed by seizures, optic atrophy and short stature from infancy onward. Movement disorders, as seen in other forms of PCH, are absent.
Key facts
- Prevalence
- <1 / 1 000 000
- Age of onset
- Neonatal
- Inheritance
- Autosomal recessive
- Classified as
- Clinical subtype
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
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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