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Updated: Jun 24, 2026

Comprehensive Endovascular and Open Surgical Management of Cerebral Arteriovenous Malformations
Published on: October 20, 2017
Arteriovenous malformation of the scalp with cerebral steal
Kate Kelly1, Jonathan R B Trites, S Mark Taylor
1Division of Otolaryngology-Head and Neck Surgery, Department of Surgery, QEII Hospital, Halifax, Nova Scotia, Canada.
Background:
Arteriovenous malformation of the scalp resulting from blunt trauma to the head is an unusual occurrence and is rarely associated with neurological sequelae. This case details an arteriovenous malformation with a cerebral steal phenomenon.
Methods:
A 21-year-old man presented with an enlarging, pulsatile mass in the right facial/temporal area without known cause. CT and angiography were consistent with a large arteriovenous malformation involving the external carotid system, causing a secondary cerebral steal that resulted in neurological symptoms including seizure. Surgical resection of the mass was undertaken.
Results:
The patient had an uncomplicated preoperative course with complete resolution of all neurologic symptoms.
Conclusion:
Cerebral steal is an uncommon consequence of traumatic extracranial arteriovenous malformation. The current literature is reviewed, and the diagnostic approach as well as therapeutic options are discussed.
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