Uncal Herniation

Increased pressure forces the hoppocampal uncus through the tentorial notch and compresses the occulomotor nerve

This compression will leads to

  • Pupilloconstrictor fibers that are affected first, which results in a dilated, fixed pupil
  • Somatic efferent fibers are affected later, which results in external strabismus
4p20g-unchernia.jpg
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