原发性胃肠恶性淋巴瘤临床上较少见 ,发病率仅占胃肠道肿瘤的 1 %～ 4% ,在淋巴瘤中占 5 %～ 1 0 % ,本病无特异临床表现 ,早期诊断困难 ,症状多样 ,不易与癌肿鉴别 ,临床误诊甚多。我院 1 990年 1 0月至 1 998年 1 2月共收治 30例 ,现就本病的诊治体会进行讨论。1　病历资料及 Primary gastrointestinal malignant lymphoma is rare in clinical practice. The incidence rate is only 1% to 4% of gastrointestinal cancers and 5% to 10% in lymphomas. There is no specific clinical manifestation of this disease, and early diagnosis is made. Difficulties, diverse symptoms, and difficult to identify with cancer, clinical misdiagnosis. A total of 30 cases were admitted to our hospital from January 1990 to January 1998 and January 2012. We are now discussing the diagnosis and treatment of this disease. 1 medical records and