Management of gastric mucosa-associated lymphoid tissue lymphoma in patients with extra copies of the MALT1 gene

作     者：Masaya Iwamuro Ryuta Takenaka Masahiro Nakagawa Yuki Moritou Shunsuke Saito Shinichiro Hori Tomoki Inaba Yoshinari Kawai Tatsuya Toyokawa Takehiro Tanaka Tadashi Yoshino Hiroyuki Okada 

作者机构：Department of Gastroen-terology and HepatologyOkayama University Graduate School of MedicineDentistryand Pharmaceutical Sciences Department of Internal MedicineTsuyama Chuo Hospital Department of Internal MedicineHiroshima City Hospital Department of GastroenterologyMitoyo General Hospital Department of Internal MedicineOkayama Saiseikai General Hospital Department of GastroenterologyShikoku Cancer Center Department of GastroenterologyKagawa Prefectural Central Hospital Department of GastroenterologyOnomichi Municipal Hospital Department of GastroenterologyFukuyama Medical Center Department of PathologyOkayama University Hospital Department of PathologyOkayama University Graduate School of MedicineDentistryand Pharmaceutical Sciences 

出 版 物：《World Journal of Gastroenterology》 (世界胃肠病学杂志（英文版）)

年 卷 期：2017年第23卷第33期

页      面：6155-6163页

核心收录：

学科分类：1002[医学-临床医学] 100214[医学-肿瘤学] 10[医学] 

主　　题：Extranodal marginal zone lymphoma of mucosa-associated lymphoid tissue Gastric neoplasms Esophagogastroduodenoscopy t(11 18) translocation Trisomy 18 

摘      要：AIM To identify the clinical features of gastric mucosaassociated lymphoid tissue(MALT) lymphoma with extra copies of *** This is a multi-centered,retrospective study. We reviewed 146 patients with MALT lymphoma in the stomach who underwent fluorescence in situ hybridization analysis for t(11;18) translocation. Patients were subdivided into patients without t(11;18) translocation or extra copies of MALT1(Group A,n = 88),patients with t(11;18) translocation(Group B,n = 27),and patients with extra copies of MALT1(Group C,n = 31). The clinical background,treatment,and outcomes of each group were *** Groups A and C showed slight female predominance,whereas Group B showed slight male predominance. Mean ages and clinical stages at lymphoma diagnosis were not different between groups. Complete response was obtained in 61 patients in Group A(69.3%),22 in Group B(81.5%),and 21 in Group C(67.7%). Helicobacter pylori(H. pylori) eradication alone resulted in complete remission in 44 patients in Group A and 13 in Group C. In Group B,14 patients underwent radiotherapy alone,which resulted in lymphoma disappearance. Although the difference was not statistically significant,event-free survival in Group C tended to be inferior to that in Group A(P = 0.10).CONCLUSION Patients with t(11;18) translocation should be treated differently from others. Patients with extra copies of MALT1 could be initially treated with H. pylori eradication,similar to patients without t(11;18) translocation or extra copies of MALT1.