特发性间质性肺炎 (IIPs)是指病因不明的、以肺间质病变或称弥漫性肺实质病变为表现的一类急、慢性肺疾病的总称。由于这一组疾病的病变具有相对的非特异性 ,且需要综合大量的临床和影像学信息才能得出最后诊断 ,加上几十年来对IIPs的认识不断加深 ,而相同的诊断名词在不同时期 Idiopathic interstitial pneumonia (IIPs) refers to the etiology is unknown to interstitial lung disease or diffuse pulmonary parenchymal disease performance of a class of acute and chronic lung disease in general. Because of the relative nonspecificity of lesions in this group of diseases and the need to synthesize large amounts of clinical and radiographic information to arrive at the final diagnosis, together with the deepening awareness of IIPs over the decades, the same diagnostic term at different times