Abstract
We report a case of pseudoaneurysm (PA) originating in a facial artery after intraoral vertical ramus osteotomy. The case was treated by embolization.
A 30-year-old man had undergone Le Fort I type osteotomy and intraoral vertical ramus osteotomy. Abnormal bleeding occurred during intraoral vertical ramus osteotomy on the right side of the mandible. The bleeding was stopped by gauze packing. The swelling after the operation decreased gradually, and he was discharged and followed up as an outpatient. Seventeen days after the operation, right acute buccal swelling recurred. Initially, an infection was suspected, and curettage was performed. Subsequently, severe bleeding from the inferior border of the mandible was recognized. A right external carotid angiogram revealed a PA in the facial artery, which was confirmed to be the cause of hemorrhage. The PA was successfully treated by embolization therapy with platinum microcoils.
