Isolated unilateral infarction of the cerebellar tonsil: Ocular motor findings

Seung Han Lee; Seong Ho Park; Ji Soo Kim; Hyo Jung Kim; Farkhod Yunusov; David S. Zee

doi:10.1002/ana.24094

Isolated unilateral infarction of the cerebellar tonsil: Ocular motor findings

Seung Han Lee, Seong Ho Park, Ji Soo Kim, Hyo Jung Kim, Farkhod Yunusov, David S. Zee

School of Medicine

Research output: Contribution to journal › Article › peer-review

Abstract

The oculomotor abnormalities with isolated infarction of the cerebellar tonsil are unknown. In a patient with acute infarction of the right tonsil, we found (1) nearly completely abolished ipsilateral smooth pursuit and impaired contralateral pursuit, (2) a low-amplitude ipsilesional right-beating nystagmus without fixation, (3) gaze-holding deficits, and (4) normal vestibulo-ocular reflex. These findings contrast with striking vestibular abnormalities reported with unilateral flocculus and anterior tonsil infarction. Taken together, these findings allow more diagnostic certainty in cerebellar patients, help resolve controversies about interpretation of experimental findings in monkeys, and clarify homologies between the monkey and human cerebellum. Ann Neurol 2014;75:429-434

Original language	English (US)
Pages (from-to)	429-434
Number of pages	6
Journal	Annals of neurology
Volume	75
Issue number	3
DOIs	https://doi.org/10.1002/ana.24094
State	Published - Mar 2014

ASJC Scopus subject areas

Neurology
Clinical Neurology

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title = "Isolated unilateral infarction of the cerebellar tonsil: Ocular motor findings",

abstract = "The oculomotor abnormalities with isolated infarction of the cerebellar tonsil are unknown. In a patient with acute infarction of the right tonsil, we found (1) nearly completely abolished ipsilateral smooth pursuit and impaired contralateral pursuit, (2) a low-amplitude ipsilesional right-beating nystagmus without fixation, (3) gaze-holding deficits, and (4) normal vestibulo-ocular reflex. These findings contrast with striking vestibular abnormalities reported with unilateral flocculus and anterior tonsil infarction. Taken together, these findings allow more diagnostic certainty in cerebellar patients, help resolve controversies about interpretation of experimental findings in monkeys, and clarify homologies between the monkey and human cerebellum. Ann Neurol 2014;75:429-434",

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AU - Lee, Seung Han

AU - Park, Seong Ho

AU - Kim, Ji Soo

AU - Kim, Hyo Jung

AU - Yunusov, Farkhod

AU - Zee, David S.

PY - 2014/3

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