D. Developmental disorders of the cerebellum
- 1. The Arnold-Chiari malformation includes displacement of
the cerebellum into the cervical segments. See section III.
- 2. The Dandy-Walker malformation includes lateral displacement
of cerebellar hemispheres by a dilated 4th ventricle. See section III.
- 3. Agenesis of the various functional parts of the cerebellum,
alone or in combination, may occur.