Since nystagmus and gait ataxia do not distinguish between the central or peripheral causes of vertigo, AICA infarct could masquerade as peripheral vestibular lesions.

• 由眼球震颤和步履运动失调无法区分中枢性或周边性之晕眩症，因此前下小脑动脉梗塞与周边前庭病变可产生临床相似的症状。