間葉成分に富んだ下顎エナメル上皮線維腫の1例 A case of mesenchymal component-rich mandibular ameloblastic fibroma

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著者

    • 柳橋 恵子 YAGIBASHI Keiko
    • 鹿児島大学大学院医歯学総合研究科先進治療学専攻顎顔面機能再建学講座口腔顎顔面外科学分野 Department of Oral and Maxillofacial Surgery, Advanced Therapeutic Course, Field of Maxillofacial rehabilitation, Kagoshima University Graduate School of Medical and Dental Sciences
    • 中村 康典 NAKAMURA Yasunori
    • 鹿児島大学大学院医歯学総合研究科先進治療学専攻顎顔面機能再建学講座口腔顎顔面外科学分野 Department of Oral and Maxillofacial Surgery, Advanced Therapeutic Course, Field of Maxillofacial rehabilitation, Kagoshima University Graduate School of Medical and Dental Sciences
    • 宮脇 昭彦 [他] MIYAWAKI Akihiko
    • 鹿児島大学大学院医歯学総合研究科先進治療学専攻顎顔面機能再建学講座口腔顎顔面外科学分野 Department of Oral and Maxillofacial Surgery, Advanced Therapeutic Course, Field of Maxillofacial rehabilitation, Kagoshima University Graduate School of Medical and Dental Sciences
    • 大河内 孝子 OKAWACHI Takako
    • 鹿児島大学大学院医歯学総合研究科先進治療学専攻顎顔面機能再建学講座口腔顎顔面外科学分野 Department of Oral and Maxillofacial Surgery, Advanced Therapeutic Course, Field of Maxillofacial rehabilitation, Kagoshima University Graduate School of Medical and Dental Sciences
    • 仙波 伊知郎 SEMBA Ichiro
    • 鹿児島大学大学院医歯学総合研究科先進治療学専攻腫瘍学講座口腔病理解析学分野 Department of Oral Pathology, Advanced Therapeutic Course, Field of Oncology, Kagoshima University Graduate School of Medical and Dental Sciences
    • 中村 典史 NAKAMURA Norifumi
    • 鹿児島大学大学院医歯学総合研究科先進治療学専攻顎顔面機能再建学講座口腔顎顔面外科学分野 Department of Oral and Maxillofacial Surgery, Advanced Therapeutic Course, Field of Maxillofacial rehabilitation, Kagoshima University Graduate School of Medical and Dental Sciences

抄録

Ameloblastic fibroma is a relatively rare benign tumor that consists of odontogenic ectomesenchyme and epithelial strands resembling an enamel organ. The variable distributions of epithelial and mesenchymal components within the tumor often make diagnosis challenging. We report a case of mandibular ameloblastic fibroma in which fibrous components occupied the main portion of the tumor.<br>An 8-year-old boy underwent a panoramic X-ray examination for abnormal deciduous tooth eruption in the maxilla, and a well-defined multilocular radiolucency in the mandible was detected. Since the biopsy specimen showed proliferation of fibroblast-like cells, the histopathological diagnosis was odontogenic fibroma. A pale white, lobulated solid lesion was resected under general anesthesia. No epithelial components were observed in the middle to upper parts of the tumor, and fascicular proliferation of fibroblast-like cells was observed. However, dental laminalike epithelial components forming cord- or islet-like structures were observed in the deep part of the tumor near the impacted tooth, and ameloblastic fibroma was diagnosed. The clinical course has been good, without recurrence for 2 years postoperatively.<br>It is necessary to be aware that the histopathological diagnosis of ameloblastic fibroma may be complicated by an uneven distribution of epithelial and mesenchymal components.

Ameloblastic fibroma is a relatively rare benign tumor that consists of odontogenic ectomesenchyme and epithelial strands resembling an enamel organ. The variable distributions of epithelial and mesenchymal components within the tumor often make diagnosis challenging. We report a case of mandibular ameloblastic fibroma in which fibrous components occupied the main portion of the tumor.<br>An 8-year-old boy underwent a panoramic X-ray examination for abnormal deciduous tooth eruption in the maxilla, and a well-defined multilocular radiolucency in the mandible was detected. Since the biopsy specimen showed proliferation of fibroblast-like cells, the histopathological diagnosis was odontogenic fibroma. A pale white, lobulated solid lesion was resected under general anesthesia. No epithelial components were observed in the middle to upper parts of the tumor, and fascicular proliferation of fibroblast-like cells was observed. However, dental laminalike epithelial components forming cord- or islet-like structures were observed in the deep part of the tumor near the impacted tooth, and ameloblastic fibroma was diagnosed. The clinical course has been good, without recurrence for 2 years postoperatively.<br>It is necessary to be aware that the histopathological diagnosis of ameloblastic fibroma may be complicated by an uneven distribution of epithelial and mesenchymal components.

収録刊行物

  • 日本口腔外科学会雑誌

    日本口腔外科学会雑誌 57(5), 314-318, 2011-05-20

    社団法人 日本口腔外科学会

参考文献:  14件中 1-14件 を表示

被引用文献:  1件中 1-1件 を表示

各種コード

  • NII論文ID(NAID)
    10030272143
  • NII書誌ID(NCID)
    AN00189163
  • 本文言語コード
    JPN
  • 資料種別
    NOT
  • ISSN
    00215163
  • NDL 記事登録ID
    11132063
  • NDL 雑誌分類
    ZS44(科学技術--医学--歯科学・口腔外科学)
  • NDL 請求記号
    Z19-145
  • データ提供元
    CJP書誌  CJP引用  NDL  J-STAGE 
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