Congenital arteriovenous fistulas supplied by a single branch of the maxillary artery.
We report four cases (two children, two adults) of congenital arteriovenous fistula supplied by a single large (pterygoid) branch of the second part of the maxillary artery deep to the parotid gland and mandible, with emphasis on the angiographic findings, therapeutic implications, and cause, with a review of the literature. Awareness of a predilection of congenital arteriovenous fistulas for this site, excellent-quality selective angiography, and careful attention to flow patterns help make the correct diagnosis. Endovascular balloon occlusion is the preferred treatment.
Gabrielsen
T O
TO
Department of Radiology, University of Michigan Hospitals, Ann Arbor 48109-0030.
Deveikis
J P
JP
Introcaso
J H
JH
Coran
A G
AG
D000328:Adult; D000792:Angiography; D001164:Arteriovenous Fistula / Q000151:congenital* / Q000000981:diagnostic imaging / Q000601:surgery / Q000628:therapy; D002675:Child, Preschool; D004621:Embolization, Therapeutic; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007223:Infant; D008297:Male; D008438:Maxillary Artery / Q000002:abnormalities* / Q000000981:diagnostic imaging / Q000601:surgery; D008875:Middle Aged; D012189:Retrospective Studies