猪尘肺的病理组织学研究

对甘肃省河西地区102例猪的肺和支气管淋巴结进行了病理学研究。生前虽难以确定特征症状、但宰后可见一定的大体变化。组织上首次在国内发现了无机尘肺的病理改变。其病变可分为局灶型与弥漫型两型。前者呈星散状分布,多位于细支气管和肺泡隔局部,其特征是在粉尘灶或尘细胞积聚处有明显的结缔组织增生和淋巴细胞浸润。附近的肺结构也有一些形态改变。后者病变主要表现为弥漫性支气管周炎,几乎所有的支气管树都受到侵害。管周结缔组织增生和粉尘沉着。在严重病例,结缔组织可长入肺泡隔和小叶间。弥漫性生肺是局灶性尘肺的进一步发展,主要发生于浮尘含量很高的河西走廊西端的安西县。

Histopathological study on pneumoconiosis in pig

In Wuwei , Zhangye cities and Anxi county of Gansu, lung, bronchus and lymph node samples were collected from 102 1~1.5 years old pigs slaughtered for histopathological examinations. Characteristic pathogenical changes of pigs with pneumoconiosis were observed and described first at home, which lesions included focal and diffuse types. Pneumoconiosis positive Fates of pigs from Wuwei, Zhangye and Anxi area were 17% ( 10/59 ) , 23% ( 6 /26 ) and 53% ( 9/17) , respectively.