MRIにて「おはじき(marble)」様の典型的所見を呈した類皮嚢胞

DOI
  • 川畑 義裕
    鹿児島大学大学院医歯学総合研究科顎顔面放射線学
  • 長澤 大成
    鹿児島大学大学院医歯学総合研究科顎顔面放射線学
  • 守山 泰司
    医療法人青雲会青雲会病院歯科口腔外科
  • 野添 悦郎
    鹿児島大学大学院医歯学総合研究科口腔顎顔面外科学
  • 河野 一典
    鹿児島大学大学院医歯学総合研究科顎顔面放射線学
  • 末永 重明
    鹿児島大学大学院医歯学総合研究科顎顔面放射線学
  • 犬童 寛子
    鹿児島大学大学院医歯学総合研究科顎顔面放射線学
  • 中村 典史
    鹿児島大学大学院医歯学総合研究科口腔顎顔面外科学
  • 仙波 伊知郎
    鹿児島大学大学院医歯学総合研究科口腔病理解析学
  • 馬嶋 秀行
    鹿児島大学大学院医歯学総合研究科顎顔面放射線学

書誌事項

タイトル別名
  • Dermoid Cyst in the Floor of the Mouth with a Typical Finding of Marble Pattern by MR Imaging

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説明

Dermoid cyst is painless, slow growing and most commonly occur in young adults. Histologically, this cyst is lined by epidermis like epithelium and contains dermal structures in the cyst wall. We report a patient with dermoid cyst in the floor of the mouth with a typical findings of marble pattern by MR imaging. A 19-year-old female noticed painless swelling in the sublingual region about 1 year before presenting at our hospital with increasing swelling. MRI was useful in the diagnosis of this case. On T2-weighted MR images showed a typical image of marble pattern of the mass. MR-signals of the marble pattern were moderate intensities and lower than that of fat. High intensity area filled the space around the marble pattern. We guessed that a cause of typical finding of marble pattern by MR imaging. Many ball-like solid components may be formed by keratin debris and fat tissues. These solid components may be filled with liquid components. Active and dynamic surrounding tissue in the sublingual region may influence marble pattern accompanied with the appropriate formation of ball-like solid components and liquid components.

収録刊行物

  • 歯科放射線

    歯科放射線 55 (2), 73-75, 2015

    特定非営利活動法人 日本歯科放射線学会

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