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Case Reports
Vertical "Half-and-Half" Syndrome with Ipsilateral Pseudoabducens Palsy due to Rostral Midbrain Lacunar Infarction.
- Daisuke Suzuki, Kenji Kikuchi, and Yoshihiro Suzuki.
- Department of Neurology, Nihonkai General Hospital, Yamagata, Japan. Electronic address: daisuke95230@yahoo.co.jp.
- World Neurosurg. 2024 Oct 1; 190: 202120-21.
AbstractVertical "half-and-half" syndrome, characterized by contralateral upward and ipsilateral downward gaze palsy, is a rare variant of vertical eye movement disturbance. Similarly, pseudoabducens palsy, manifesting as abductive palsy despite no lesion to the pons, constitutes another rare type of eye movement disturbance. Both conditions have been associated with lesions in the thalamo-mesencephalic junction. We present a rare case report detailing a patient exhibiting vertical "half-and-half" syndrome with ipsilateral pseudoabducens palsy following a left lacunar infarction of the thalamo-mesencephalic junction. Additionally, we discuss the potential underlying mechanisms contributing to this rare combination of eye movement disorders.Copyright © 2024 Elsevier Inc. All rights reserved.
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