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Clinical features

Last reviewed dd mmm yyyy. Last edited dd mmm yyyy

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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