报导58例咯血而胸片正常患者,进行纤支镜检查的结果和随访材料。发现肿物者6例,其中3例为支气管鳞癌,1例类癌,2例喉癌。6例皆为吸烟者。痰中皆未找到恶性细胞,若不作纤支镜检查将会漏诊。2例喉癌者,常规检查阴性,说明全面检查鼻、咽、喉结构的重要性。其余52例支气管未发现癌者,随访12～108个月(平均55.7±29.6月)。有2例分别在2年和6年后诊断为支气管癌。3例死亡和肺部恶性肿瘤无关。47 Reported 58 cases of hemoptysis and chest X-ray normal patients, the results of bronchoscopy and follow-up materials. Six cases were found, of which three were bronchial squamous carcinomas, one carcinoid and two laryngeal carcinomas. 6 cases were all smokers. No malignant cells have been found in sputum, and bronchoscopy can be missed if not checked. 2 cases of laryngeal cancer, routine examination negative, indicating a comprehensive examination of the nasopharynx, pharynx, the importance of the structure of the throat. The remaining 52 cases of bronchial cancer were not found, followed up for 12 to 108 months (mean 55.7 ± 29.6 months). Two patients were diagnosed as bronchogenic carcinoma at 2 and 6 years respectively. Three deaths were unrelated to pulmonary malignancies. 47