作者研究10例经外科根治的肺癌,评价CT对其胸内淋巴结转移的诊断准确度。原发性肿瘤为T_1或T-2,常规断层片不能发现转移.将CT与每组淋巴结的组织学进行对照,得到了下列结果和结论: 1.对第3组(气管前、气管后或前纵隔、后纵隔)、第4组(气管支气管交界)、第5组(主动脉下或动脉导管下)、第6组(升主动脉旁)四处异常肿大的淋巴结,CT相当容易发现;但肿大的淋巴结不一定是由于肿瘤转移。 2.对第1组(上纵隔或最高纵隔),第2组(气 The authors studied 10 surgically cured lung cancers and evaluated the diagnostic accuracy of CT for their intrathoracic lymph node metastases. The primary tumor is T_1 or T-2. Conventional tomosynthesis cannot detect metastases. The comparison of CT with the histology of each group of lymph nodes yielded the following results and conclusions: 1. For group 3 (pretracheal, posttracheal or Anterior and posterior mediastinum), group 4 (trachea-bronchial junction), group 5 (under the aorta or sub-catheter duct), and group 6 (aortic ascending) are abnormally enlarged lymph nodes. CT is fairly easy to detect; However, the enlarged lymph nodes are not necessarily due to tumor metastasis. 2. For group 1 (upper mediastinum or the highest mediastinum), group 2 (qi