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Claude's Syndrome without Ptosis Caused by a Midbrain Infarction
Hiromasa Tsuda1, Tomoko Fujita, Kaori Maruyama
1Department of Neurology, Tokyo Metropolitan Health and Medical Corporation Toshima Hospital, Japan.
Internal Medicine (Tokyo, Japan)
|July 17, 2015
Summary
This case study presents Claude's syndrome in an 80-year-old man, highlighting a potential new understanding of oculomotor nerve fascicle arrangement. The findings suggest specific fiber locations within the brainstem, offering insights into neuroanatomy.
Area of Science:
- Neuroscience
- Neurology
- Vascular Neurology
Background:
- Claude's syndrome is a rare mesencephalic脳卒中 syndrome.
- Understanding the precise arrangement of oculomotor nerve fascicles is crucial for localizing lesions.
Observation:
- An 80-year-old male patient with angina pectoris presented with acute Claude's syndrome.
- Symptoms included left oculomotor nerve palsy (without ptosis) and right hemiataxia.
- Cranial MRI revealed an infarction in the left inferior paramedian mesencephalic artery.
Findings:
- The infarction likely involved the caudal portion of the oculomotor fascicles.
- The patient recovered within 10 days with anti-platelet therapy.
- This case suggests levator palpebrae superioris fibers might be located more rostrally in the fascicles than previously thought.
Implications:
- The findings contribute to the understanding of human oculomotor fascicular organization.
- This case provides valuable clinical-anatomical correlation for mesencephalic lesions.
- It may refine the localization of specific neurological deficits based on infarct patterns.
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