ArticleRadiology case reports2024
Hypertrophic olivary degeneration secondary to a Guillain Mollaret triangle cavernoma: Two case report.
Article in Radiology case reports, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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Who cites it
2 citing papers in PubMed.
- Another Rare Cause of Hypertrophic Olivary Degeneration Following Cavernous Malformation Hemorrhage: A Case Report.Diagnostics (Basel, Switzerland) · 2025Article
- Hypertrophic olivary degeneration secondary to brain abscess: a case report and literature review.Frontiers in human neuroscience · 2025Article
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Authors and funding
7 authors.
Funding
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Abstract
Hypertrophic olivary degeneration (HOD) is a rare form of transsynaptic degeneration. It is caused by a damage at the Guillain-Mollaret triangle (GMT), which is defined by three anatomical structures: the dentate nucleus, the red nucleus, and the inferior olivary nucleus (ION). Clinically, it may be revealed by palatal myoclonus. On MRI, it appears as a unilateral or bilateral enlargement of the inferior olivary nucleus which shows a high signal intensity on T2-weighted images, with sometimes a cerebellar atrophy. Here we report 2 cases of healthy patients which present hemorrhagic brainstem cavernomas, complicated later by the development of palatal myoclonus and cerebellar ataxia, with MRI features corresponding to an (HOD) secondary to a (GMT) cavernoma. The purpose is to explain the mechanism of (HOD) subsequent to lesion in (GMT), and to describe magnetic resonance imaging features.
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