Lateral pontine syndrome
Lateral pontine syndrome, also known as Marie-Foix syndrome, refers to one of the brainstem stroke syndromes which occurs due to occlusion of perforating branches of the basilar and anterior inferior cerebellar (AICA) arteries. This results in infarction of the lateral aspect of the pons which produces a characteristic clinical picture from the involvement of the following pontine structures:
- corticospinal tract: contralateral hemiplegia/hemiparesis.
- spinothalamic tracts: contralateral loss of pain and temperature sensation.
- cerebellar tracts: ipsilateral limb ataxia.
- facial nerve (CN VII) nucleus: ipsilateral facial paralysis.
- vestibulocochlear nerve (CN VIII) nuclei: ipsilateral hearing loss, vertigo and nystagmus.
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