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目的：探讨肺炎性假瘤的ＣＴ诊断价值。材料和方法：搜集我院手术病理证实的肺炎性假瘤１８例，对其ＣＴ表现进行回顾性分析。结果：肺炎性假瘤的主要ＣＴ表现是：（１）病变多位于胸膜下，病灶基底较广泛贴于胸膜，伴局部胸膜增厚。（２）病变的中间层面可见一侧边缘垂直于胸膜呈刀切样改变。（３）病灶边缘粗长毛刺。（４）血管向病灶集中。（５）病灶可密度不均，有小空洞及支气管空气征。（６）肿块中央结节状钙化。结论：ＣＴ检查是诊断肺炎性假瘤的重要方法，特别是ＨＲＣＴ扫描，能详细观察病灶内部结构及周围情况，提供鉴别诊断信息，有助于明确诊断。
Objective: To investigate the diagnostic value of CT in the diagnosis of pulmonary inflammatory pseudotumor. Materials and Methods: Eighteen cases of pneumonic pseudotumor confirmed by surgery and pathology in our hospital were collected. The CT findings were retrospectively analyzed. Results: The main CT findings of pneumonectomy were: (1) The lesions were mostly located in the subpleural area. The lesions were more extensively attached to the pleura with the basal pleura thickening. (2) the middle of the lesion can be seen on one side of the edge perpendicular to the pleura was knife-like change. (3) thick edge of the rough burr. (4) vascular focus to the lesion. (5) lesions can be uneven density, a small hole and bronchial air sign. (6) Mass central nodular calcification. Conclusion: CT examination is an important method for the diagnosis of pulmonary inflammatory pseudotumor, especially the HRCT scan. It can observe the internal structure of the lesion and its surroundings in detail and provide the differential diagnosis information to help confirm the diagnosis.