Definition of Hematoma, epidural

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Hematoma, epidural: A hematoma between the skull and the brain's tissue-like covering, which is known as the dura. Epidural hematoma is usually caused by a full-on blow to the head and is often associated with skull fracture. Diagnosis is usually made via MRI or CT scan. Treatment is trepanation: drilling through the skull to drain the excess blood.