肺内多发结节是间质性肺疾病常见的CT征象,肺部结节特有的征象与分布特点在某种程度上反映了疾病的性质与进展状态。因此,正确认识肺部多发结节的特点有利于间质性肺疾病的诊断与鉴别诊断。1肺部结节影肺部结节影可以广义地定义为:在X线胸片或CT见到的肺内任何边界相对清楚、孤 Pulmonary multiple nodules are common CT signs of interstitial lung disease, lung nodules specific signs and distribution characteristics to some extent reflect the nature of the disease and the status of progress. Therefore, the correct understanding of the characteristics of pulmonary nodules is conducive to the diagnosis and differential diagnosis of interstitial lung disease. 1 pulmonary nodules Pulmonary nodules can be broadly defined as: any border seen in the chest X-ray or CT lung relatively clear, orphans