Also known as Wallenberg syndrome.
Vertebral artery is the most commonly involved artery (V4 segment) or Posterior Inferior cerebellar artery(PICA)
Right sided lateral medullary lesion
- Loss of pain and temperature in right side of face and left side of body.
- Ipsilateral palatal palsy and loss of gag reflex due to involvement of IXth and Xth cranial nerves.
- Ipsilateral ataxia nad horners syndrome(because sympathetic chain runs along this course)
- Dysphagia,nystagmus.
- Loss of taste sensation on ipsilateral part of tongue.
- No hemiplegia/Hemiparesis.
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