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FIG 2. Embolization and dental surgery.
A, Left mandibular phlebogram (nonsubtracted view) after direct puncture of the venous varix with an 18-gauge needle (white arrow). The AV shunt is significantly reduced after transarterial embolization and additionally diminished by external compression of the draining vein (arrows) with a metal clamp.
B, Three-dimensional reconstruction obtained by rotational radiography after intralesional injection of NBCA shows the glue cast in the feeding artery (black arrow), the giant venous pouch (asterisk), and the draining vein (mental vein; white arrow).
C, Left external carotid control arteriogram reveals the complete occlusion of the AV shunt.
D, After detaching the mucoperiost flap in the premolar/molar areas, left lower jaw. The glue-filled venous pouch of the AVM (asterisk) is surrounded by the partly loosened osseous lamella and can be removed without significant blood loss.
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