中心型肺癌的早期诊断尤为困难,缺乏明显的临床和X 线表现,支气管镜活检并非都能证实,经皮穿刺抽吸潘检有引起并发症的危险,所以支气管内容物的细胞学检查有重要意义.作者分析早期中心型肺癌18例,来自肺段和肺段下支气管,直径3cm 以下,无淋巴结转移,肺有性质不明的浸润性病灶者。经支气管镜(涂片和支气管洗 The early diagnosis of central lung cancer is particularly difficult, and there is no obvious clinical and X-ray findings. Bronchoscopic biopsy is not always confirmed. Percutaneous puncture and aspiration of the pan examination may cause complications, so cytology of bronchial contents is important. Significance. The authors analyzed 18 cases of early-stage central lung cancer, from the lungs and the lower bronchi of the lungs, with diameters below 3 cm, no lymph node metastases, and lungs with invasive lesions of unknown nature. Transbronchoscopic (smear and bronchial washing