Lateral digital subtraction angiography (DSA).Contrast injection in the right facial artery showing multiple hypertrophic branches of the facial artery (arrow) and of the inferior alveolar artery (arrowhead) via the internal maxillary artery. Note that all branches are directed towards one anatomical location (star), with signs of an obvious nidus. Early filling of the dilated external jugular vein (asterisk) and the common jugular vein, suggestive of an arteriovenous fistula (AVF).