title: Concurrent colonic mucosa-associated lymphoid tissue lymphoma and adenoma diagnosed after a positive fecal occult blood test: a case report.
abstract: BACKGROUND
  Colonic lymphoma is an uncommon presentation of extranodal lymphoma. Colonic mucosa-associated lymphoid tissue lymphoma is a different entity from gastric mucosa-associated lymphoid tissue lymphoma, and very rare. The presentation and management of colonic mucosa-associated lymphoid tissue are highly variable in the literature.
  
  
  METHODS
  We report the case of a 59-year-old Taiwanese man who underwent a colonoscopy after a positive test for fecal occult blood. His past history included hypertension and hyperthyroidism. The colonoscopy revealed an adenomatous polyp and mucosa-associated lymphoid tissue lymphoma. We successfully performed a polypectomy and endoscopic mucosal resection. The lymphoma was staged according to the Ann Arbor system modified by Musshoff as E-I. Our patient showed no lymphoma recurrence over a 3-year follow-up.
  
  
  CONCLUSIONS
  Endoscopic mucosal resection for colonic mucosa-associated lymphoid tissue lymphoma without disseminated disease may be feasible. We successfully used colonoscopic treatment without adjuvant therapy to treat early-stage pathogen-free colonic mucosa-associated lymphoid tissue lymphoma.
authors.affiliation: Division of Colon and Rectal Surgery, Lin Shin Hospital, Taichung, Taiwan.
authors.forename: Pei-Chiang
authors.initials: PC
authors.lastname: Lin
authors.affiliation: Division of Colon and Rectal Surgery, Chang Gung Memorial Hospital, 5, Fu-Hsing Street, Kuei-Shan Hsiang, Tao-Yuan, Linkou, Taiwan.
authors.forename: Jinn-Shiun
authors.initials: JS
authors.lastname: Chen
authors.affiliation: Division of Hematology-Oncology, Department of Internal Medicine, Chang Gung Memorial Hospital, Linkou, Taiwan.
authors.forename: Po
authors.initials: P
authors.lastname: Deng
authors.affiliation: Department of Pathology, Chang Gung Memorial Hospital, Linkou, Taiwan.
authors.forename: Chih-Wei
authors.initials: CW
authors.lastname: Wang
authors.affiliation: Division of Endocrinology and Metabolism, Department of Internal Medicine, Chang Gung Memorial Hospital, Linkou, Taiwan.
authors.forename: Chiung-Huei
authors.initials: CH
authors.lastname: Huang
authors.affiliation: Division of Colon and Rectal Surgery, Chang Gung Memorial Hospital, 5, Fu-Hsing Street, Kuei-Shan Hsiang, Tao-Yuan, Linkou, Taiwan.|Chang Gung University College of Medicine, Linkou, Taiwan.
authors.forename: Reiping
authors.initials: R
authors.lastname: Tang
authors.affiliation: Division of Colon and Rectal Surgery, Chang Gung Memorial Hospital, 5, Fu-Hsing Street, Kuei-Shan Hsiang, Tao-Yuan, Linkou, Taiwan.
authors.forename: Jy-Ming
authors.initials: JM
authors.lastname: Chiang
authors.affiliation: Division of Colon and Rectal Surgery, Chang Gung Memorial Hospital, 5, Fu-Hsing Street, Kuei-Shan Hsiang, Tao-Yuan, Linkou, Taiwan.
authors.forename: Chien-Yuh
authors.initials: CY
authors.lastname: Yeh
authors.affiliation: Division of Colon and Rectal Surgery, Chang Gung Memorial Hospital, 5, Fu-Hsing Street, Kuei-Shan Hsiang, Tao-Yuan, Linkou, Taiwan.
authors.forename: Pao-Shiu
authors.initials: PS
authors.lastname: Hsieh
authors.affiliation: Division of Colon and Rectal Surgery, Chang Gung Memorial Hospital, 5, Fu-Hsing Street, Kuei-Shan Hsiang, Tao-Yuan, Linkou, Taiwan.
authors.forename: Wen-Sy
authors.initials: WS
authors.lastname: Tsai
authors.affiliation: Division of Colon and Rectal Surgery, Chang Gung Memorial Hospital, 5, Fu-Hsing Street, Kuei-Shan Hsiang, Tao-Yuan, Linkou, Taiwan. sumfuchiang@gmail.com.
authors.forename: Sum-Fu
authors.initials: SF
authors.lastname: Chiang
mesh_terms: D000236:Adenoma / Q000175:diagnosis* / Q000601:surgery; D003110:Colonic Neoplasms / Q000175:diagnosis* / Q000601:surgery; D003113:Colonoscopy; D006801:Humans; D007413:Intestinal Mucosa / Q000601:surgery; D018442:Lymphoma, B-Cell, Marginal Zone / Q000175:diagnosis* / Q000601:surgery; D008297:Male; D008875:Middle Aged; D009378:Neoplasms, Multiple Primary / Q000175:diagnosis* / Q000601:surgery; D009780:Occult Blood
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