A case of ameloblastic fibrosarcoma of the mandible

  • IWAMOTO Tsutomu
    Division of Oral and Maxillofacial Surgery, Department of Developmental and Reconstructive Medicine, Course of Medical and Dental Sciences, Nagasaki University Graduate School of Biomedical Sciences
  • MATSUO Takemitsu
    Division of Oral and Maxillofacial Surgery, Department of Developmental and Reconstructive Medicine, Course of Medical and Dental Sciences, Nagasaki University Graduate School of Biomedical Sciences
  • YANAMOTO Souichi
    Division of Oral and Maxillofacial Surgery, Department of Developmental and Reconstructive Medicine, Course of Medical and Dental Sciences, Nagasaki University Graduate School of Biomedical Sciences
  • KAWASAKI Goro
    Division of Oral and Maxillofacial Surgery, Department of Developmental and Reconstructive Medicine, Course of Medical and Dental Sciences, Nagasaki University Graduate School of Biomedical Sciences
  • MIZUNO Akio
    Division of Oral and Maxillofacial Surgery, Department of Developmental and Reconstructive Medicine, Course of Medical and Dental Sciences, Nagasaki University Graduate School of Biomedical Sciences
  • FUJITA Shuichi
    Division of Oral Pathology and Bone Metabolism, Department of Developmental and Reconstructive Medicine, Course of Medical and Dental Sciences, Nagasaki University

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Other Title
  • 良性,悪性成分が混在した下顎骨エナメル上皮線維肉腫の1例
  • ショウレイ ホウコク リョウセイ アクセイ セイブン ガ コンザイ シタ カガクコツ エナメル ジョウヒ センイ ニクシュ ノ 1レイ

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Abstract

Ameloblastic fibrosarcoma (AFS) is a rare malignant tumor composed of benign odontogenic epithelial components and malignant ectomesenchymal components. We report a case of AFS occurring in the mandible of a 15-year-old boy. The patient was referred to our department for evaluation and treatment of gingival swelling. The lesion was diagnosed as a benign ameloblastic fibroma on examination of a biopsy specimen. The lesion was excised under general anesthesia, and the pathological diagnosis was AFS. At present, the postoperative course is good, with no recurrence as of about 4 years since the operation.

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