Methods: 68 cases of primary lung cancer underwent supraclavicular lymph nodes palpation and ultrasound examination, as well as B-guided fine needle aspiration was performed in swollen lymph nodes.

• 方法：对68例有组织病理学证据的原发性肺癌患者进行了锁骨上淋巴结触诊和B超检查，并对肿大淋巴结行B超引导下细针穿刺细胞学检查。