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对经纤维支气管镜确诊的 5 6 7例中心性肺癌分析如下 :病变分布于双肺 ,以左侧偏多 ,占 5 0 .8% ,右侧为47.4% ,气管隆突部位占 1.8% ;镜下可见病变以肿块和浸润性生长者占多数 ,病理类型中鳞癌最多 ,占46 .7% ,小细胞未分化癌次之 ,占 34 .2 % ,腺癌占 17.5 % ;该组肺癌患者以男性居多 ,占 81.7% ,女性占18.3% ,男性患者中鳞癌占多数 ,共 2 5 8例 ,占男性患者的 5 5 .8% ,其次为小细胞未分化癌 ,占 31.1% ;女性患者以小细胞未分化癌和腺癌为主 ,分别占女性患者的 45 .2 %和 32 .7% ,40～ 6 9岁之间为肺癌高发年龄 ,占患者总数的 82 .4% ,鳞癌患者年龄偏高 ,以 5 0～ 6 0岁居多 ,占鳞癌总数的 72 .2 % ,小细胞未分化癌患者年龄偏低 ,39岁以下者共 2 9例 ,占该年龄段肺癌总数的 6 3.0 %。
The 556 cases of central lung cancer diagnosed by fiberoptic bronchoscopy were analyzed as follows: Lesions were distributed in both lungs, with more left side, accounting for 50.8%, right side with 47.4%, and tracheal carinas accounted for 1.8%; Microscopically, the majority of lesions were infiltrative and infiltrative growth, with the most pathological type being squamous cell carcinoma, accounting for 46.7%, followed by small cell undifferentiated carcinoma, accounting for 34.2%, and adenocarcinoma 17.5%. Most of the patients were males, accounting for 81.7%, and females accounted for 18.3%. Among the male patients, squamous cell carcinoma accounted for 258 cases, accounting for 55.8% of male patients, followed by small cell undifferentiated carcinoma, accounting for 31.1%; Female patients were mainly small-cell undifferentiated and adenocarcinomas, accounting for 45.2% and 32.7% of female patients respectively, and between 40 and 69 years old had high incidence of lung cancer, accounting for 82.4% of the total number of patients. The patients with squamous cell carcinoma were older and were mostly 50-60 years old, accounting for 72.2% of the total number of squamous cell carcinomas. The patients with small-cell undifferentiated carcinoma were younger, and there were 29 cases under 39 years old, accounting for lung cancer in this age group. 63.0 % of the total.