Brain herniation syndromes

Types

  1. Uncal
  2. Central Transtentorial
    • Pinpoint → nonresponsive midpoint pupils
    • Motor weakness → increased tone → flexor, then extensor posturing
  3. Cerebellotonsilar (posterior fossa pressure)
  4. Upward Transtentorial
    • Pinpoint pupils
    • Downward conjugate gaze
  5. Subfalcine herniation (cerebral mass lesion causes medial surface of affected hemisphere to push against rigid falx cerebri, then herniate underneath)
    • Cingulate gyrus most commonly affected
    • Often clinically silent

See Also

References

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