尘肺可分为有机粉尘和无机粉尘所致的尘肺两大类,而以后者为多,包括矽肺、煤肺、石棉肺、混合矽肺等。有机粉尘所致尘肺比较复杂,包括棉尘肺、禾物尘肺,蔗尘肺等。此类尘肺,文献报道不多,也未引起应有的重视,现将我们发现的2例报告如下。例一男 75岁农民(连续任饲养员十五年)。患者经常咳嗽、吐痰,胸闷气喘,劳累后上述症状加重,长期误诊为慢性支气管炎、支气管扩张。1975年拍胸片(仰卧位)显示:两肺中下部多 Pneumoconiosis can be divided into two categories of organic dust and inorganic dust caused by pneumoconiosis, while the latter are more, including silicosis, coal lung, asbestosis lung, mixed silicosis. Pneumoconiosis caused by organic dust is more complicated, including cotton pneumoconiosis, cereal pneumoconiosis, sugarcane and pneumoconiosis. Such pneumoconiosis, reported little literature, did not arouse due attention, now we found two cases are reported as follows. Example A male and 75-year-old farmer (consecutive breeder fifteen years). Patients often cough, spit, chest tightness, asthma, fatigue after the above symptoms worse, long-term misdiagnosis of chronic bronchitis, bronchiectasis. 1975 chest radiograph (supine position) shows: more than the middle and lower lungs