Case Report

Management of Hemorrhagic Pseudoaneurysmal Arteriovenous Fistula of the Sphenopalatine Artery

Figure 1

(a) Lateral view digital subtraction angiography of the left external carotid artery demonstrating a pseudoaneurysm of the proximal sphenopalatine artery (arrow). (b) Microcatheter injection digital subtraction angiography of the left internal maxillary artery identifying fistulous venous drainage of the sphenopalatine artery with early venous drainage into the pterygoid plexus (arrow). (c) Unsubtracted fluoroscopic spot view of the maxillofacial region in the lateral view demonstrating the n-BCA cast within the pseudoaneurysm and fistula (arrow).
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