A Case of Mature Cystic Teratoma with Malignant Transformation Diagnosed Using Colonoscopy

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  • ITO Hiroko
    Dept. of Gynecology, Ibaraki Seinan Medical Center Hospital
  • TSUKUDA Yoko
    Dept. of Gynecology, Ibaraki Seinan Medical Center Hospital
  • IIBA Moe
    Dept. of Gynecology, Ibaraki Seinan Medical Center Hospital
  • NOGUCHI Rie
    Dept. of Gynecology, Ibaraki Seinan Medical Center Hospital
  • SOMEYA Katsumi
    Dept. of Gynecology, Ibaraki Seinan Medical Center Hospital
  • NOZAKI Reiji
    Dept. of Surgery, Ibaraki Seinan Medical Center Hospital
  • OGAWA Isao
    Dept. of Surgery, Ibaraki Seinan Medical Center Hospital

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Other Title
  • 下部消化管内視鏡で組織生検を行ない，悪性転化を伴う成熟嚢胞性奇形腫の診断に至った1例
  • 症例報告 下部消化管内視鏡で組織生検を行ない,悪性転化を伴う成熟嚢胞性奇形腫の診断に至った1例
  • ショウレイ ホウコク カブ ショウカカン ナイシキョウ デ ソシキセイケン オ オコナイ,アクセイ テンカ オ トモナウ セイジュクノウホウセイ キケイ シュ ノ シンダン ニ イタッタ 1レイ

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Abstract

Mature cystic teratoma with malignant transformation is a rare disease with an incidence of about 1% among ovarian tumors. Here, we describe how we were able to diagnose pathological tissue preoperatively using colonoscopy. The patient was a 68-year-old woman (gravida 4). She presented with abdominal pain. Her general condition was poor. On examination, we found perforation of an ovarian tumor into the sigmoid colon. Lower gastrointestinal endoscopy was performed and some tissue was retrieved. Pathological analysis of the tissue revealed a diagnosis of squamous cell carcinoma.

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