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  • Title: Vertex epidural hematoma associated with traumatic arteriovenous fistula of the middle meningeal artery: a case report.
    Author: Matsumoto K, Akagi K, Abekura M, Tasaki O.
    Journal: Surg Neurol; 2001 May; 55(5):302-4. PubMed ID: 11516475.
    Abstract:
    BACKGROUND: Vertex epidural hematomas are rare. We describe the features of a vertex epidural hematoma associated with an arteriovenous fistula (AVF) of the meningeal artery created by a laceration of the dura mater underlying a linear skull fracture. Although AVF associated with convexity epidural hematomas has been reported, we know of no such previous report of vertex epidural hematomas. CASE DESCRIPTION: A 65-year-old woman presented with generalized headache following head injury. On hospital day 3, she developed a left hemiparesis. Magnetic resonance imaging (MRI) disclosed a thick epidural hematoma at the vertex. Cerebral angiography showed an AVF between the middle meningeal artery and a venous lake. On hospital day 4, the epidural hematoma was evacuated. CONCLUSION: Although coronal MRI was important for diagnosis of this vertex epidural hematomas, the case particularly illustrates the importance of cerebral angiography. The delayed onset of hemiparesis most likely reflected a continuing increase in hematoma volume because of bleeding from the lacerated meningeal artery.
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