術前のMR画像で病変内部の信号パターンに変化を認めた耳下腺リンパ上皮性嚢胞の1例 A case of lymphoepithelial cyst in the parotid gland with changes on MRI before operation

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著者

    • 山中 喜代 YAMANAKA Kiyo
    • 佐賀大学医学部歯科口腔外科学講座 Department of Oral and Maxillofacial Surgery, School of Dental Medicine, Saga University
    • 平島 惣一 HIRASHIMA Soichi
    • 九州歯科大学口腔顎顔面外科学講座病態制御学分野 First Department of Oral and Maxillofacial Surgery, Kyushu Dental College
    • 福田 仁一 FUKUDA Jinichi
    • 九州歯科大学口腔顎顔面外科学講座病態制御学分野 First Department of Oral and Maxillofacial Surgery, Kyushu Dental College
    • 張 皿 ZHANG Min
    • 九州歯科大学生命科学講座口腔病態病理学分野 Department of Biosciences, Division of Oral Pathology, Kyushu Dental College
    • 福山 宏 FUKUYAMA Hiroshi
    • 九州歯科大学生命科学講座口腔病態病理学分野 Department of Biosciences, Division of Oral Pathology, Kyushu Dental College

抄録

Lymphoepithelial cyst is characterized by a cyst wall, the inner layer of which consists mainly of squamous epithelium, overlying lymphatic tissue. Previously, this lesion has been referred to as a branchiogenic cyst, lateral cervical cyst, or benign lymphoepithelial cyst. This lesion frequently develops in the lateral cervical region or oral floor, but rarely develops in the parotid gland.<BR>We report on a 68-year-old man with a lymphoepithelial cyst in the parotid gland, which showed changes on MRI before operation. With the patient under general anesthesia, the lesion was extirpated. Histopathologically, the resected specimen suggested a lymphoepithelial cyst. Because the cyst contained a colloid substance, transformation of a liquid substance into a highly viscous colloid substance may have contributed to the changes on MRI. Many duct-like structures of the salivary gland were observed in the resected specimen, suggesting that the content was initially similar to saliva, and that these ducts were involved in subsequent changes in the liquid content. Furthermore, a lymphatic tissue layer with a marginal sinus-like structure was found below the capsule. Therefore, we speculated that the parotid glandular epithelium invaded the parotid lymph nodes, leading to cyst formation.

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 52(9), 502-506, 2006-09-20 

    Japanese Society of Oral and Maxillofacial Surgeons

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各種コード

  • NII論文ID(NAID)
    10018859399
  • 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
    8529978
  • 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  NDL  J-STAGE 
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