title: Extranodal marginal zone B-cell lymphoma of the gastrointestinal tract sparing only the esophagus: a case report.
abstract: Lymphomas presented in any organ or tissue other than lymph nodes or the spleen are considered primary extranodal non-Hodgkin's lymphomas, and the most common non-Hodgkin's lymphomas are of the gastrointestinal tract. The most common histological subtypes are marginal zone B-cell lymphoma of mucosa-associated lymphoid tissue and diffuse large B-cell lymphoma, and typically only one to two organs are affected. Patients present with a wide variety of vague complaints, making early diagnosis problematic. Herein, we report the case of a 76-year-old male with extranodal marginal zone B-cell lymphoma involving the entire gastrointestinal tract, sparing only the esophagus, who was Helicobacter pylori-negative. He underwent six courses of chemotherapy with R-CHOP regimen, and achieved complete remission.
authors.affiliation: Chung Shan Medical University Hospital, Department of Internal Medicine, Taichung, Taiwan, Republic of China. malkovich060716@yahoo.com.tw.
authors.forename: Chun-Che
authors.initials: CC
authors.lastname: Lin
authors.forename: Hsin-Wu
authors.initials: HW
authors.lastname: Lai
authors.forename: Ming-Chang
authors.initials: MC
authors.lastname: Tsai
authors.forename: Tan-Hsia
authors.initials: TH
authors.lastname: Chen
authors.forename: Szu-Wen
authors.initials: SW
authors.lastname: Tseng
authors.forename: Han
authors.initials: H
authors.lastname: Chang
authors.forename: Tzy-Yen
authors.initials: TY
authors.lastname: Chen
mesh_terms: D000368:Aged; D058846:Antibodies, Monoclonal, Murine-Derived / Q000627:therapeutic use; D000971:Antineoplastic Combined Chemotherapy Protocols / Q000627:therapeutic use; D003520:Cyclophosphamide / Q000627:therapeutic use; D004317:Doxorubicin / Q000627:therapeutic use; D016145:Endoscopy, Digestive System; D005770:Gastrointestinal Neoplasms / Q000188:drug therapy / Q000473:pathology*; D006801:Humans; D018442:Lymphoma, B-Cell, Marginal Zone / Q000188:drug therapy / Q000473:pathology*; D008297:Male; D011241:Prednisone / Q000627:therapeutic use; D000069283:Rituximab; D014750:Vincristine / Q000627:therapeutic use
chemical_list: D058846:Antibodies, Monoclonal, Murine-Derived; C571759:R-CHOP protocol; D000069283:Rituximab; D014750:Vincristine; D004317:Doxorubicin; D003520:Cyclophosphamide; D011241:Prednisone