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Related Experiment Videos

Plus-minus lid syndrome.

B Gaymard1, C Lafitte, A Gelot

  • 1Clinique Neurologique, Hôpital Bretonneau, Tours, France.

Journal of Neurology, Neurosurgery, and Psychiatry
|September 1, 1992
PubMed
Summary
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A patient experienced eyelid issues from a nuclear third nerve syndrome. A brain scan identified a lesion in the midbrain affecting the oculomotor nucleus.

Area of Science:

  • Neuroscience
  • Ophthalmology
  • Neurology

Background:

  • Nuclear third nerve syndrome can cause complex eye movement and eyelid abnormalities.
  • Understanding the precise localization of lesions is crucial for diagnosing the underlying cause.

Observation:

  • A patient presented with ipsilateral ptosis and contralateral superior eyelid retraction.
  • These symptoms were indicative of a nuclear third nerve syndrome.

Findings:

  • A CT brain scan revealed a paramedian mesencephalic lesion.
  • The lesion was contiguous with the oculomotor nucleus.
  • The midbrain tectum and posterior commissure were spared.

Implications:

  • This case highlights the specific neuroanatomical correlates of certain oculomotor nerve palsies.

Related Experiment Videos

  • Accurate lesion localization aids in targeted diagnosis and management of midbrain pathologies.
  • Further research into mesencephalic lesions and their impact on cranial nerves is warranted.