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目的：研究CT在观察胃癌淋巴结转移中的价值。材料与方法：对32例胃癌伴有淋巴结转移的病例进行了病理与术前CT对比观察。结果：各组转移性淋巴结的检出率为40％～81％，有远处淋巴结转移者多伴有1～2组浅、深淋巴结转移。结论：（1）根据部位的不同，受累淋巴结的检出率有较大差异，较易显示的为距肿瘤较远周围脂肪丰富的淋巴结。（2）淋巴结转移的分布有由浅入深，由近至远的规律性，以提供治疗方案的选择。（3）与原发肿瘤融合的转移性淋巴结及大小趋于正常的转移怀淋巴结为CT漏诊的主要原因。（4）CT对转移性淋巴结肿大的检出率虽不十分令人满意，但仍具很大价值。
Objective: To study the value of CT in the observation of lymph node metastasis of gastric cancer. Materials and Methods: 32 cases of gastric cancer with lymph node metastasis were compared between pathology and preoperative CT. Results: The detection rate of metastatic lymph nodes in each group was 40% to 81%. There were many patients with distant lymph node metastases with 1 to 2 groups of light and deep lymph node metastases. Conclusions: (1) According to the different sites, the detection rate of lymph node involvement is quite different, and it is easy to show the lymph nodes that are far away from the tumor. (2) The distribution of lymph node metastasis is from shallow to deep, from near to far, in order to provide treatment options. (3) Metastatic lymph nodes fused with primary tumors and metastatic lymph nodes with normal size are the main reasons for CT missed diagnosis. (4) Although the detection rate of CT for metastatic lymphadenopathy is not very satisfactory, it still has great value.