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Start free with EleplanIsolated bilateral hemispheric cerebellar hypoplasia
ORPHA:269221Morphological anomaly
What it is
Isolated bilateral hemispheric cerebellar hypoplasia is a rare cerebellar malformation characterized by hypoplasia of both cerebellar hemispheres with no other cerebellar/cerebral anomaly or other associated clinical feature. Affected patients present with mild hypotonia with motor delay, mild cognitive impairment, language delay, visuospatial and verbal memory deficits, dysdiadochokinesis, intentional tremor, and possible presence of emotional fragility and mild depression.
Key facts
- Age of onset
- Infancy, Neonatal
- Classified as
- Morphological anomaly
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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