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Clinical features

Authoring team

Effects develop rapidly as the bleeding is arterial in origin and at high pressure.

Clinical features may include:

  • patient is often a young adult
  • commonly follows trauma to the temporal or temporo-parietal region
  • scalp oedema above the ear may be present
  • concussion may be followed by temporary recovery of consciousness for minutes or hours before the onset of drowsiness and possibly coma - a characteristic phenomenon referred to as the "lucid interval"
  • there may be an ipsilateral, dilated pupil on the side of the expanding lesion; a bilateral III nerve palsy may follow as rising intracranial pressure produces tentorial herniation
  • there may be signs of intracranial compression
  • there may be progressive contralateral hemiplegia

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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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