A case of arteriovenous malformation of the mandible requiring urgent treatment

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  • MYO Kunihiro
    Maxillofacial Surgery Section, Maxillofacial and Neck Reconstruction Department, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University Department of Oral and Maxillofacial Surgery, Shizuoka City Hospital
  • HASEGAWA Kazuki
    Department of Oral and Maxillofacial Surgery, Shizuoka City Hospital
  • MIYAMOTO Hideo
    Department of Oral and Maxillofacial Surgery, Shizuoka City Hospital
  • HARADA Kiyoshi
    Maxillofacial Surgery Section, Maxillofacial and Neck Reconstruction Department, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University

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  • 緊急対応を要した下顎骨動静脈奇形の1例
  • キンキュウ タイオウ オ ヨウシタ カガクコツドウ ジョウミャク キケイ ノ 1レイ

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Abstract

Arteriovenous malformation (AVM) of the jaw is considered a rare lesion. We report a case of AVM of the mandible. A 51-year-old man was referred to our department for further evaluation of a mandibular lesion. Panoramic radiography showed a multilocular radiolucency extending from the lower retromolar region to the right ramus of the mandible. A biopsy was performed for differential diagnosis between an ameloblastoma and keratocystic odontogenic tumor. However, severe hemorrhage occurred during the biopsy. The patient was admitted to our hospital urgently. An intraosseous AVM supplied by the maxillary artery was suspected on angiography. Embolization of the right maxillary artery was performed to decrease the hemorrhage during operation. One hour after the embolization, a segmental mandibulectomy was perfomed with the patient under general anesthesia. Histopathologically, the lesion was diagnosed as an AVM. The patient was followed up for 2 years without recurrence.

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