Arteriovenous malformation of the scalp with cerebral steal.
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.


CONCLUSIONS
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.
Kelly
Kate
K
Division of Otolaryngology-Head and Neck Surgery, Department of Surgery, QEII Hospital, Halifax, Nova Scotia, Canada.
Trites
Jonathan R B
JR
Taylor
S Mark
SM
Bullock
Martin
M
Hart
Robert D
RD
D001165:Arteriovenous Malformations / Q000175:diagnosis* / Q000209:etiology / Q000601:surgery; D006801:Humans; D008297:Male; D010306:Parotid Gland / Q000098:blood supply*; D012535:Scalp / Q000293:injuries*; D013349:Subclavian Steal Syndrome / Q000175:diagnosis / Q000209:etiology* / Q000601:surgery; D014949:Wounds, Nonpenetrating / Q000150:complications* / Q000473:pathology / Q000628:therapy; D055815:Young Adult