Tiny infarction of rostral cerebellum manifested by contralesional body lateropulsion

Q3 Neuroscience

eNeurologicalSci Pub Date : 2024-08-30 DOI:10.1016/j.ensci.2024.100523

Obay Alalousi , Mickael Bonnan

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Abstract

Body lateropulsion (BLP) has been reported several times after cerebellar infarction. It is usually ipsilateral to the cerebellar infarction, particularly when limited to the rostral cerebellum. In contrast, contralesional BLP after cerebellar infarction has been reported in more caudal regions of the cerebellum (such as the nodulus or the tonsil).

We report the case of a small infarction of the left anterior paravermis of the rostral cerebellum which resulted in bilateral symptoms: ipsilesional limb ataxia and, unexpectedly, contralesional BLP.

Several neurological pathways were potentially involved. Both right and left dorsal spinocerebellar tracts may have been damaged by the infarction of the left anterior paravermis. On the other hand, the proximity of the infarct to the superior cerebellar peduncle may have caused damage to the vestibular pathways (fastigio-vestibular or dentato-vestibular tracts), as they exit the cerebellum by the superior cerebellar peduncle. A lesion of the cerebellum close to the superior cerebellar peduncle could result in a contralesional BLP.

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小脑喙突微小梗塞，表现为对侧体后撇

小脑梗塞后出现体侧瞳孔散大（BLP）的情况已有多次报道。它通常发生在小脑梗塞的同侧，尤其是局限于喙小脑时。我们报告了一例左侧喙突小脑前海绵体旁小梗死病例，该病例导致双侧症状：同侧肢体共济失调，意外的是，还出现了对侧BLP。左侧前副蚓部梗死可能损伤了左右脊髓小脑背侧束。另一方面，由于梗塞部位靠近小脑上梗，前庭通路（快速前庭束或齿状前庭束）可能受到损伤，因为这些通路通过小脑上梗离开小脑。靠近小脑上梗的小脑病变可能导致对侧 BLP。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

eNeurologicalSci Neuroscience-Neurology

CiteScore

3.50

自引率

0.00%

发文量

审稿时长

62 days

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