We present a case report of recurrent transvenous and transarterial embolization for mandibular arteriovenous malformation. An 11-year-old female patient experienced hemorrhaging from the left mandibular gingiva since October 2018. In mid-January 2019, she was urgently referred to a local physician owing to persistent bleeding from the same area. Computed tomography revealed osteolytic alterations in the left mandible. The patient was referred to our center for accurate assessment. Suspecting arteriovenous malformation, magnetic resonance imaging was performed, revealing heightened signal intensity in T2-weighted images and decreased signal intensity on T1-weighted images surrounding the left mandible.The patient received transvenous coil embolization and transarterial embolization utilizing cyanoacrylate material. In October 2019, abscess and cutaneous fistula formation were noted due to embolic infection. The introduction artery was treated with transarterial embolization using a gelatin sponge, and mandibular curettage, including the extraction of teeth 33-35, was carried out. Afterward, residual inflammation was detected around the coil in the mandibular molar region on the left side. Therefore, removal of the embolic material and the extraction of teeth 36-38 were performed. Arterial bleeding was identified intraoperatively, requiring transarterial embolization(TAE). At present, the patient exhibits no evidence of lesion recurrence.
