在一些肺部疾病中,如结核、过敏性肺炎、铍中毒及肉样瘤等,它们的临床症状尽管不同,但都有一个共同的表现,即形成肉芽肿,进而发生肺实质损伤或导致肺部纤维化,使肺脏丧失正常的呼吸功能。外源性抗原通过呼吸道或适过血液进入肺脏,引起肺局部炎症,称为肺泡炎。在其进一步发展的过程中或好转或形成肉芽肿。肉芽肿可造成肺实质部分的损 In some pulmonary diseases, such as tuberculosis, allergic pneumonia, beryllium poisoning and sarcoidosis, etc., their clinical symptoms, though different, have a common manifestation of granulomatosis, which in turn leads to lung parenchymal injury or lung Department of fibrosis, the lungs lose normal respiratory function. Exogenous antigens through the respiratory tract or suitable blood into the lungs, causing local inflammation of the lungs, known as alveolitis. During its further development or improvement or formation of granulomas. Granuloma can cause damage to the parenchyma of the lungs