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• a  below the dura mater but above the arachnoid membrane of the meninges

• Finally Donald's illness was diagnosed: subdural hydroma, or water on the brain, usually the result of a head injury that tears the tissue surrounding the brain, allowing cerebro .
• And some scientific studies have surfaced in recent months tracing subdural hematomas, or blood clots, to riding high-speed roller coasters.
• A subdural hematoma is blood between the dura and brain.

News & Articles

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• Many Falls
  Attorneys for Navarrez, who was 79 when he was admitted to San Marino in 2009, presented evidence that he fell nine times while at the facility in March and April of that year. He suffered a subdural hematoma, requiring surgery, after the last fall and later suffered a stroke.
  June 6, 2013 - Metropolitan News-Enterprise