下唇粘膜部に発生した筋上皮癌の1例

DOI Web Site 参考文献24件
  • 大迫 利光
    東京医科歯科大学大学院医歯学総合研究科口腔機能再構築学系口腔機能再建学講座顎口腔外科学分野
  • 小村 健
    東京医科歯科大学大学院医歯学総合研究科口腔機能再構築学系口腔機能再建学講座顎口腔外科学分野
  • 原田 浩之
    東京医科歯科大学大学院医歯学総合研究科口腔機能再構築学系口腔機能再建学講座顎口腔外科学分野
  • 栢森 高
    東京医科歯科大学大学院医歯学総合研究科口腔機能再構築学系口腔機能再建学講座口腔病態診断科学分野

書誌事項

タイトル別名
  • A case of myoepithelial carcinoma arising in the mucosa of the lower lip
  • カシン ネンマクブ ニ ハッセイ シタ キン ジョウヒガン ノ 1レイ

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抄録

Myoepithelial carcinoma (MC) is an extremely rare tumor accounting for approximately 0.2% of all salivary gland tumors. It is often difficult to diagnose MC because the tumor cells of MC show a wide variety of morphologies. We report a case of MC arising in the lower lip.<br>A 54-year-old male patient was referred to our department for evaluation of a mass in the right lower lip. Physical examination revealed a submucosal mass lesion measuring 2.5 × 2.0 cm with a well-defined border. It was elastic soft and ovate in shape. There was no palpable cervical lymphadenopathy. Biopsy of the mass suggested epithelial malignant tumor. He underwent local excision of the tumor and the resulting surgical defect was covered by a split-thickness skin graft. Postoperative histopathologic examination confirmed the diagnosis of MC with neuroendocrine differentiation.<br>The patient is being followed up and shows no evidence of local recurrence or lymph node or distant metastasis of the tumor 24 months after surgery.

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