Colorectal Adenocarcinoma Occurring in an Indiana Pouch

  • Tsuchiya Yuki
    Department of Coloproctological Surgery, Juntendo University Faculty of Medicine
  • Amemiya Kota
    Department of Coloproctological Surgery, Juntendo University Faculty of Medicine
  • Hagiwara Toshiaki
    Department of Coloproctological Surgery, Juntendo University Faculty of Medicine
  • Matsuzawa Hirokazu
    Department of Coloproctological Surgery, Juntendo University Faculty of Medicine
  • Makino Yurika
    Department of Coloproctological Surgery, Juntendo University Faculty of Medicine
  • Motegi Shunsuke
    Department of Coloproctological Surgery, Juntendo University Faculty of Medicine
  • Kawano Shingo
    Department of Coloproctological Surgery, Juntendo University Faculty of Medicine
  • Kawai Masaya
    Department of Coloproctological Surgery, Juntendo University Faculty of Medicine
  • Ishiyama Shun
    Department of Coloproctological Surgery, Juntendo University Faculty of Medicine
  • Sugimoto Kiichi
    Department of Coloproctological Surgery, Juntendo University Faculty of Medicine
  • Kamiyama Hirohiko
    Department of Coloproctological Surgery, Juntendo University Faculty of Medicine
  • Komiyama Hiromitsu
    Department of Coloproctological Surgery, Juntendo University Faculty of Medicine
  • Takahashi Makoto
    Department of Coloproctological Surgery, Juntendo University Faculty of Medicine
  • Kojima Yutaka
    Department of Coloproctological Surgery, Juntendo University Faculty of Medicine
  • Tomiki Yuichi
    Department of Coloproctological Surgery, Juntendo University Faculty of Medicine
  • Sakamoto Kazuhiro
    Department of Coloproctological Surgery, Juntendo University Faculty of Medicine

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Other Title
  • 代用膀胱(Indiana pouch)内に発生した大腸癌の1例

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<p>The patient was an 84-year-old man who had undergone total cystectomy and Indiana pouch construction for bladder cancer in 1989. At the previous hospital in 2017, he was diagnosed with urinary tract infection due to a fever. Abdominal computed tomography showed elevated lesion in the pouch, and the patient was subsequently referred to our hospital. Under cystoscopy, biopsy from the tumor was adenocarcinoma. A scope inserted through the stoma revealed a 15mm 0-Is polyp in the pouch, and endoscopic mucosal resection (EMR) was performed. Histopathological findings were submucosal invasive cancer (tub2, pT1b, ly0, v0, budding grade1, pHMX, pVMX). Considering the patient's age, complications, and performance status, course observation was selected without additional resection despite being at high-risk on histopathological examination after EMR. A second cystoscopy using colonoscope performed 5 months after EMR showed no recurrence.</p>

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