患者女 ,36岁 ,农民。以咳嗽、咳白色粘液痰半个月为主诉就诊。查体 :咽、扁桃体白色薄苔 ,双肺呼吸少许湿 口罗音 ,Ｘ线胸片显示两肺中下肺野呈弥漫型点片状影 ,拟诊肺泡癌。纤支镜检查 ,镜下可见气管及支气管粘膜炎性改变 ,散在点片状白膜样物 ,触之成片脱落 ,各级支气管未见 Female patient, 36 years old, farmer. To cough, cough, white mucus and sputum for half a month as the main complaint. Physical examination: pharynx, tonsils white thin moss, a little wet lungs lungs breathing rales, X-ray showed that the lungs in the lower lung fields were diffuse film-like shadow, proposed alveolar cancer. Bronchoscopy, microscopic tracheal and bronchial mucosal inflammatory changes can be seen scattered sheetlike white film samples, touching the film into pieces, all levels of the bronchus has not seen