Transsynaptic degeneration in the cerebellum and brainstem may give rise
to a rare neurological condition with various clinical manifestations, namely
hypertrophic olivary degeneration. The classical manifestations of hypertrophic
olivary degeneration comprise myoclonus, palatal tremor, ataxia, and ocular
symptoms. Any lesions interrupting the dentate-rubro-olivary pathway, referred to
as the anatomic Guillain-Mollaret triangle, contribute to the broad aetiologies
of hypertrophic olivary degeneration. The clinical diagnosis depends primarily on
the associated symptoms and the characteristic magnetic resonance imaging
findings. Concerning treatment and prognosis, there are no widely accepted
guidelines. Here, we identified 11 cases of hypertrophic olivary degeneration
secondary to brainstem infarction from 1964 to the present. Combined with two of
our cases, the clinical and imaging findings of 13 patients with hypertrophic
olivary degeneration secondary to brainstem infarction were studied. A
meta-analysis of case studies gives the correlation coefficient between
infraction location and time to develop hypertrophic olivary degeneration as
0.217 (P = 0.393, P
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A meta-analysis of case studies and clinical characteristics of hypertrophic olivary degeneration secondary to brainstem infarction
Yi-Lin Wang1, Yan Gao1, Ping-Ping He1, Jiang-Ning Yin1, Ruo-Fei Dong1, Xin Li1, Yu Fu1, Hong Zhang1,*
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1
Department of Neurology, Shengjing Hospital of China Medical University, No. 36 Sanhao Street, Heping District, Shenyang, Liaoning, 110004, P. R. China
*Correspondence: hongzhang@cmu.edu.cn (Hong Zhang)
J. Integr. Neurosci. 2020, 19(3), 507–511;
https://doi.org/10.31083/j.jin.2020.03.1238
Submitted: 15 November 2019 | Revised: 17 April 2020 | Accepted: 24 April 2020 | Published: 30 September 2020
(This article belongs to the Special Issue Exploration of mechanisms in cortical plasticity)
Copyright: © 2020 Wang et al. Published by IMR Press.
This is an open access article under the CC BY-NC 4.0 license (https://creativecommons.org/licenses/by-nc/4.0/).
Abstract
Keywords
Hypertrophic olivary degeneration
brainstem
Guillain-Mollaret triangle
inferior olive nucleus
magnetic resonance imaging
neurological dysfunction
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