胃肠道是结外淋巴瘤最常见的发病部位，绝大多数为非霍奇金淋巴瘤。近20年来原发胃肠道淋巴瘤（primary gastrointestinal lymphoma，PGIL）的诊断、分期和治疗等有了较大的进展。现今PGIL的治疗模式是以内科治疗为主的综合治疗，手术治疗一般不再作为主要治疗手段，而通常用于相关并发症如消化道出血、穿孔及梗阻等的治疗。临床医师须熟识PGIL治疗中外科治疗的指征和作用，避免给与病人不必要的手术治疗。

Evaluation on the surgical resection for the treatment of primary gastrointestinal lymphoma        LI Zi-yu,YUAN Peng,JI Jia-fu. Key Laboratory of Carcinogenesis and Translational Research （Ministry of Education）, Peking University School of Oncology ，Beijing Cancer Hospital & Institute, Beijing 100142, China
Corresponding author:JI Jia-fu, E-mail: jiafuj@hotmail.com
Abstract    Primary Gastrointestinal tract is the most common extranodal site involved by lymphoma with the majority being non-Hodgkin type. There has been a tremendous leap in the diagnosis, staging and management of primary gastrointestinal lymphoma (PGIL) in the last two decades. Comprehensive treatment is the main therapeutic measure for PGIL. Surgical resection is not considered as principle treatment. In most instances it is performed just to treat the complication of PGIL such as digestive perforation, bleeding or obstruction. We should be well acquainted the value of the surgical treatment of PGIL and avoid of unnecessary surgical resection for the patients.