肺炎性假瘤并非少见 ,但其临床表现无特异性 ,故易被误诊为肺癌或将肺癌误诊为肺炎性假瘤。 1978～1998年 ,我院曾收治 67例肺炎性假瘤 ,术前误诊 55例 ( 82 % )。现报告如下。临床资料 :本组 55例误诊患者中 ,男 38例 ,女 17例 ;年龄 16～ 60岁 ,35～ 4 5岁 4 9例 ( 89% )。非 Pneumothorax pseudotumor is not uncommon, but its clinical manifestations of non-specific, it is easily misdiagnosed as lung cancer or lung cancer misdiagnosed as pneumonia pseudotumor. From 1978 to 1998, 67 cases of pneumothorax were treated in our hospital. 55 cases were preoperatively misdiagnosed (82%). The report is as follows. Clinical data: The group of 55 cases of misdiagnosed patients, 38 males and 17 females; aged 16 to 60 years old, 35 to 45 years old 49 cases (89%). non-