A CASE OF TYPE II ENTEROPATHY-ASSOCIATED T-CELL LYMPHOMA IN THE COLON

DOI
  • TAMURA Jiro
    Department of Infectious, Respiratory, and Digestive Medicine, University of the Ryukyus.
  • ATSUMI Eriko
    Department of Pathology and Cell Biology, Graduate School of Medicine, University of the Ryukyus.
  • SHIMABUKURO Kouhei
    Department of Infectious, Respiratory, and Digestive Medicine, University of the Ryukyus.
  • KINJO Tetsu
    Department of Infectious, Respiratory, and Digestive Medicine, University of the Ryukyus.
  • TAKESHIMA Eriko
    Department of Infectious, Respiratory, and Digestive Medicine, University of the Ryukyus.
  • KINJO Nagisa
    Department of Infectious, Respiratory, and Digestive Medicine, University of the Ryukyus.
  • HOKAMA Akira
    Department of Infectious, Respiratory, and Digestive Medicine, University of the Ryukyus.
  • KATO Seiya
    Department of Pathology and Cell Biology, Graduate School of Medicine, University of the Ryukyus.
  • OHSHIMA Kouichi
    Department of Pathology, School of Medicine, Kurume University.
  • FUJITA Jiro
    Department of Infectious, Respiratory, and Digestive Medicine, University of the Ryukyus.

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Other Title
  • 大腸に発症したII型腸管症関連T細胞リンパ腫の1例

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Abstract

A 66-year-old man presented with diarrhea, borborygmus, and abdominal distension. Enhanced computed tomography revealed the thickening of the colonic wall. F-18 fluorodeoxyglucose positron emission tomography showed uptake in the thickened colonic wall. Colonoscopy revealed granular and edematous appearance of the hepatic colon, circumferential ulcer with dirty necrotic materials of the sigmoid colon, and a polyp of the rectum with smooth surface. Capsule endoscopy showed edematous villi and cracked mucosa of the small intestine. Pathology examination of the resected polyp revealed proliferation of small- to medium-sized atypical lymphocytes into the colonic mucosa. In immunohistochemistry, tumor cells were positive for CD3 and CD8, partially positive for CD56, and negative for CD4, CD5, and CD20. Consequently, he was diagnosed with type II enteropathy-associated T-cell lymphoma. He received chemotherapy at the Department of Hematology in our hospital and has been under treatment for eight months since the diagnosis.

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