目的 :探讨结外型恶性淋巴瘤的临床特点及其误诊情况。方法 :对经病理确诊的恶性淋巴瘤272例进行回顾性分析。结果 :误诊率为84.1% ,结外型淋巴瘤有69例 ,占25.4% ,其中韦氏环、鼻腔占第一位 ,其次为腹腔、胃肠道 ,分别占23.2% ,14.5 %。其它部位少见。结论 :结外型淋巴瘤易误诊 ,临床表现缺乏特异性 ,韦氏环、鼻腔最易受侵犯 ,病理检查是确诊的唯一方法 Objective: To investigate the clinical features and misdiagnosis of extracranial malignant lymphoma. Methods: Retrospective analysis of 272 cases of pathologically diagnosed malignant lymphoma. Results: The misdiagnosis rate was 84.1%. There were 69 cases of extranodal lymphoma, accounting for 25.4%. Among them, Wechsler’s ring and nasal cavity occupied the first place, followed by abdominal cavity and gastrointestinal tract, accounting for 23.2% and 14.5% respectively. Other parts rare. Conclusion: The extranodal lymphoma is easy to be misdiagnosed, the clinical manifestations are lack of specificity. Webster ’s ring and nasal cavity are the most easily infringed, and pathological examination is the only way to diagnose