报告３２例上腔静脉综合征患者的纤支镜检结果，２７例获得确诊（确诊率为８４．３７％），且小细胞性肺癌２０例占６２．５％，鳞癌４例占１２．５％，腺癌３例占９．３７％。镜下见２７例病灶于右侧，５例位于左侧。粘膜浸润性改变的２０例，１０例为菜花样新生物，术中无１例明显出血，对该病的病因、镜下所见、阳性率和并发症等问题做了讨论。 Thirty-two patients with superior vena cava syndrome were examined with bronchoscopy, of which 27 were diagnosed (84.37% confirmed), 20 with small cell lung cancer (62.5%) and 4 with squamous cell carcinoma (12). 5%, adenocarcinoma in 3 cases accounted for 9.37%. There were 27 lesions on the right side and 5 on the left side in the microscope. There were 20 cases of mucosal infiltrative changes and 10 cases of cauliflower newtons. There was no obvious bleeding in one case. The etiology, microscopic findings, positive rate and complications of the disease were discussed.