【摘要】 目的：探讨肺炎性结节的ＣＴ诊断和鉴别。方法：１９例常规胸部ＣＴ和高分辨率ＣＴ（ＨＲＣＴ）扫描，炎性假瘤１５例手术病理证实，４例球形肺炎随访１～２月明显缩小或吸收。另按ＣＴ序号收集同期病理证实≤３ｃｍ周围型肺癌３０例，结核球１５例与之鉴别。结果：１７／１９肺炎性结节居上叶后段或下叶背段、基底段肺周边紧贴胸膜；形态多样１４／１９，类圆形５／１９；轮廓模糊不规则和长条索１８／１９；空气支气管征５／１９，空洞４／１９，密度均匀１０／１９；１５／１９周围有较明显点片絮状炎症表现，１６／１９不同程度胸膜增厚。结论：大多数肺炎性结节的ＣＴ表现与周围型肺癌、结核球者是不同的。更多还原

【Abstract】 Objective:To explore CT diagnosis and differetiation of inflammatory nodule of lung.Methods:19 cases of inflammatory pseadotumor imaged with routine chest CT and high resolution CT scans,of them,15 cases were confirmed by pathology and the focus of spherical pneumonia were shrinked or absorbed followed up for1～2 months.In additon,30 cases with peripheral cancer of lung(≤3 cm in diameter) and 15 cases with tuberculoma confirmed by pathology were collected in responding period for differentiating diagnosis.Result:The inflammatory nodules of lung were usually situated at the periphery of segment of upper lobe or dorsal segment and basal segment of lower lobe,the noduleas were always tightly closed to the pleura(17/19),The CT findings were:various shape(14/19),round-like appearance(5/19).Indistinct and irregular with long cords(19/19),cavity(4/19),air bronchogram(5/19),hemogeneous in density(10/19),olovious inflammitory shadow around the nodules (15/19) and local pleural thickness (16/19).Conclusion:The CT features of most of pulmonary inflammatory nodules are differant from that of peripheral pulmonary cancer and tuberculoma.更多还原