title: Extranodal NK/T cell lymphoma, nasal type, of the small intestine diagnosed by double-balloon endoscopy.
abstract: Extranodal NK/T-cell lymphoma (ENKL), nasal type, is rare and the small intestine is quite extraordinary as a primary lesion site. We report a 47-year-old man with ENKL of the small intestine. He was referred to our hospital because of bloody stool and the diagnosis was made by double-balloon endoscopy (DBE) of the small intestine without surgical procedure. His clinical stage was IVB and he was categorized in group 4 by prognostic index of ENKL. He went into complete remission (CR) after intensive chemotherapy (DeVIC) and subsequently underwent allogeneic bone marrow transplantation (BMT). Although he remained in CR for about 8 months after BMT, he died of disease recurrence 14 months after the diagnosis was made. ENKL of the small intestine follows a highly aggressive course. We describe the usefulness of DBE for diagnosis and management for ENKL of the small intestine. Additional cases, however, should be accumulated to establish optimal treatment strategy.
authors: Department of Hematology, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan.
authors: Shihoko
authors: S
authors: Wakabayashi
authors: Department of Hematology, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan. ara.hema@tmd.ac.jp.
authors: Ayako
authors: A
authors: Arai
authors: Department of Hematology, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan.
authors: Gaku
authors: G
authors: Oshikawa
authors: Department of Gastroenterology and Hepatology, Graduate School of Medicine, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan.
authors: Akihiro
authors: A
authors: Araki
authors: Department of Gastroenterology and Hepatology, Graduate School of Medicine, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan.
authors: Mamoru
authors: M
authors: Watanabe
authors: Department of Hematology, Toranomon Hospital, 2-2-2 Toranomon, Minato-ku, Tokyo, 105-8470, Japan.
authors: Naoyuki
authors: N
authors: Uchida
authors: Department of Hematology, Toranomon Hospital, 2-2-2 Toranomon, Minato-ku, Tokyo, 105-8470, Japan.
authors: Shuichi
authors: S
authors: Taniguchi
authors: Department of Hematology, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan.
authors: Osamu
authors: O
authors: Miura
mesh_terms: D003131:Combined Modality Therapy; D016099:Endoscopy, Gastrointestinal / Q000379:methods*; D017809:Fatal Outcome; D006801:Humans; D007414:Intestinal Neoplasms / Q000175:diagnosis* / Q000628:therapy; D007421:Intestine, Small / Q000473:pathology; D054391:Lymphoma, Extranodal NK-T-Cell / Q000175:diagnosis* / Q000628:therapy; D008297:Male; D008875:Middle Aged; D009669:Nose Neoplasms