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Unilateral Isolated Trochlear Nerve Palsy due to Ipsilateral Midbrain Infarction
Toshiyuki Hayashi1,2, Koichi Nomura1,2, Yasuhiro Nishiyama1
1Department of Neurology, Graduate School of Medicine, Nippon Medical School.
Journal of Nippon Medical School = Nippon Ika Daigaku Zasshi
|January 18, 2021
Summary
Isolated trochlear nerve palsy is rarely caused by ischemic stroke. This case report details a 70-year-old woman with isolated trochlear nerve palsy resulting from a small midbrain infarction, highlighting stroke as a potential cause.
Area of Science:
- Neurology
- Neuro-ophthalmology
- Vascular Neurology
Background:
- Ischemic stroke is an uncommon cause of isolated trochlear nerve palsy.
- Reports of ipsilateral trochlear nerve palsy due to unilateral stroke are scarce.

