作者们根据文献及自己的资料认为多种系统性结缔组织疾病都可见不同类型及不同程度的肺脏损害。作者们观察了如下疾病引起的肺损害:系统性红斑性狼疮、进行性系统性硬化症、类风湿性关节炎、结节性动脉周围炎以及伟格纳(Wegener)肉芽肿等。这些疾病损害肺的发生率各家报告不一。据Sregentheler According to the literature and their own data, the authors found different types and degrees of lung damage in a variety of systemic connective tissue diseases. The authors observed lung damage caused by the following diseases: systemic lupus erythematosus, progressive systemic sclerosis, rheumatoid arthritis, periarteritis of the nodal artery, and Wegener’s granulomatosis. The incidence of these diseases that damage the lungs varies from one report to another. According to Sregentheler