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There are several differences, including:

  • Location: An epidural hematoma (EDH) occurs between your skull and the outermost layer of meninges, the dura mater. A subdural hematoma occurs in the space between the dura mater and the second meninges layer, the arachnoid layer.
  • Ease of diagnosis: EDHs are usually easier to diagnosis in that they are sudden and obvious and typically associated with a head fracture. Subdural hemorrhages are more difficult to identify because they may not be evident after the first or single blow to the head.
  • Prevalence: Subdural hematomas are more common than EDHs.
  • Death rate: The death rate is significantly higher if you have a subdural hematoma.


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