Infection, trauma, bleeding, tumor or anything that increases ICP

Your Path

  • Herniation


  • Parasympathetics travel on outside of CN3
  • Very vulnerable to increased pressure


  • Obvious trauma
  • Grave neuro deficits
  • Decreased level of consciousness

Physical Exam Findings

  • Patient obviously ill
  • Progressive other coresponding neuro deficits
  • Dilated and minimally/non-reactive pupil on side of brain that's herniating
  • Opposite eye may be nl