胃肠道癌是常见的恶性肿瘤，有无淋巴结转移与判断预后密切相关。无淋巴结转移者手术后五年生存率明显高于有转移者。但在实际工作中，笔者发现有些认为无淋巴结转移的病人术后生存时间并不长。其原因可能与癌的组织学分型，浸润的范围，治疗的方案等因素有关，但是否存在... Gastrointestinal cancer is a common malignancy. The presence or absence of lymph node metastasis is closely related to the prognosis. The 5-year survival rate after surgery without lymph node metastases was significantly higher than that with metastases. However, in actual work, the author found that some patients who believe that there is no lymph node metastasis have a long survival time. The reason may be related to the histological type of cancer, the extent of infiltration, the treatment plan and other factors, but is there...