Conditions affected the 8th cranial nerve can result in the vestibular syndrome, which may be acute or chronic.

Clinical presentation:

(1) dizziness

(2) nausea and vomiting

(3) headache

(4) intolerance of head motion

(5) nystagmus

(6) unsteady gait


Possible causes:

(1) acute vestibular neuritis (due to drugs, chemicals, infection, etc)

(2) stroke in the posterior circulation (cerebellar, pontine, other)

(3) tumors (malignatn lymphoma)

(4) medullary cavernous malformation

(5) multiple sclerosis

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