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Clinical features

Authoring team

The effects develop gradually as bleeding is venous in origin and at low pressure.

General features include:

  • fluctuating conscious level:
    • there may be a history of gradual onset of headaches, memory loss, personality change, dementia, confusion and drowsiness
    • symptoms vary from day to day with intervening lucid periods
  • focal neurological signs - often, hemiparesis of the side ipsilateral to the lesion - a "false" localising sign
  • aphasia - if the lesion is on the left side

Acute form:

  • symptoms follow immediately from an identifiable injury

Chronic form:

  • latent period of weeks or months before symptoms apparent
  • greater extent of cerebral distortion and herniation than acute form as the brain can initially accommodate the developing mass lesion

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The content herein is provided for informational purposes and does not replace the need to apply professional clinical judgement when diagnosing or treating any medical condition. A licensed medical practitioner should be consulted for diagnosis and treatment of any and all medical conditions.

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