Lateral Medullary Syndrome (Wallenberg Syndrome)
Lateral medullary syndrome is a neurological disorder causing a range of symptoms due to ischemia in the lateral part of the medulla oblongata in the brainstem. The ischemia is a result of a blockage in the posterior inferior cerebellar artery or one of its branches.
Signs & Symptoms
| SIDE | MANIFESTATION | COMMENTS |
|---|---|---|
| Ipsilateral | Sensory loss – face – pain and temperature | CN 5 nucleus |
| Ipsilateral | Facial pain | CN 5 nucleus |
| Ipsilateral | Ataxia – arm and leg | Restiform body, cerebellum |
| Ipsilateral | Gait ataxia | Restiform body, cerebellum |
| Ipsilateral | Nystagmus | Vestibular nucleus |
| Ipsilateral | Nausea / vomiting | Vestibular nucleus |
| Ipsilateral | Vertigo | Vestibular nucleus |
| Ipsilateral | Horseness | Nucleus ambiguus |
| Ipsilateral | Dysphagia | Nucleus ambiguus |
| Ipsilateral | Horner syndrome | Descending sympathetics |
| Contralateral | Hemisensory loss – pain and temperature | Spinothalamic tract |
| Neither | Hiccups |
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