尸检980例中,发现继发性肺炎117例(11.9%),其特点为病理变化严重,而呼吸系统症状不显著。临床上除原发病之表现外,半数以上无呼吸系统症状及/或体征。多数也无发热及白细胞增高等炎症表现。临床诊断肺炎或肺部感染者仅19例(16.2%),其漏诊率之高(83.8%)值得临床工作者予以关注。 Of the 980 autopsy cases, 117 (11.9%) had secondary pneumonia, which was characterized by severe pathological changes but not significant respiratory symptoms. In addition to the clinical manifestations of the primary disease, more than half have no respiratory symptoms and / or signs. Most also no fever and leukocytosis and other inflammatory manifestations. Clinical diagnosis of pneumonia or pulmonary infection in only 19 cases (16.2%), the high rate of missed diagnosis (83.8%) is worth the attention of clinicians.