Lower motor neurone causes
Lower motor neurone causes of a hypoglossal nerve palsy can be classified according to the side and site of the lesion:
- bilateral:
- motor neurone disease
- Guillain-Barre syndrome
- poliomyelitis
- Arnold Chiari syndrome
- unilateral:
- central:
- vascular lesions, e.g. thrombosis of the vertebral artery
- motor neurone disease
- syringobulbia
- central:
- peripheral:
- posterior fossa:
- tumours
- aneurysms
- chronic meningitis
- trauma
- upper neck:
- syringomyelia
- tumours
- lymphadenopathy
- posterior fossa:
The Arnold Chiari malformation can cause a unilateral lower motor neurone hypoglossal palsy.
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