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目的：分析细支气管肺泡癌（ＢＡＣ）的临床特点，为其诊断提供线索。方法：回顾性分析３５例ＢＡＣ临床资料。结果：胸部Ｘ线平片及ＣＴ均有阳性发现，肺病灶以周围型和弥漫型居多（７７．１％，２７／３５）；纤维支气管镜（纤支镜）刷检阳性率４４％（１１／２５）；经皮肺穿刺、痰涂片及胸水细胞学检查总阳性率５０％（２０／４０例次）；血清癌胚抗原（ＣＥＡ）检查２７例均升高，平均为４５．２ｎｇ／ｍｌ。结论：血清ＣＥＡ对ＢＡＣ的诊断有重要参考价值；纤支镜刷检、经皮肺穿刺、痰涂片及胸水细胞学检查是确诊ＢＡＣ的主要方法。
Objective: To analyze the clinical features of bronchioloalveolar carcinoma (BAC) and provide clues for its diagnosis. Methods: Retrospective analysis of 35 cases of BAC clinical data. Results: Chest X-ray plain film and CT were positive. The majority of lung lesions were peripheral and diffuse (77.1%, 27/35). The positive rate of fiberoptic bronchoscopy (bronchoscopy) was 44% (11%). /25); The total positive rate of percutaneous lung biopsy, sputum smear, and pleural fluid cytology was 50% (20/40 cases); the serum CEA level was elevated in 27 cases, with an average of 45.2ng/ Ml. Conclusion: Serum CEA has important reference value for the diagnosis of BAC; bronchoscopy, percutaneous lung puncture, sputum smear and pleural effusion cytology are the main methods for the diagnosis of BAC.