Blood between skull and dura mater
Expansion
Extradural Haematoma
Purpose
Usually from middle meningeal artery injury; lens-shaped on computed tomography; neurosurgical emergency
Clinical Context
Extradural haematoma from meningeal artery tear (usually middle meningeal). Lens-shaped hyperdensity crossing suture lines. Lucid interval classic presentation. Urgent burr hole evacuation.
Related Terms
- Subdural
- Epidural
Key Points
- Epidural equals between bone and dura; lentiform (lens) shape; usually hyperdense; lucid interval common