目的分析胸部放线菌病的X线平 片和CT体层摄影术影像特点，评价X线及 CT在诊断该病中的价值。方法 选择2005 年1月至2015年2月期间我院收治，经实验 室检查证实为胸部放线菌病的患者10例为 研究对象，所有患者均行X线平片和CT体 层摄影术检查；CT影像采用标准算法、多 平面重组图像，观察影像特点。结果 本 组10例患者X线正、侧胸平片均显示为团 块和大片密实影，但没有显示有空洞、液 化和气体病灶；CT检查结果显示：放线菌 病变累及18个肺叶52个肺段；8例患者的 CT影像显示以团块为主要病灶，病灶周围 肺多见斑点或斑片以及条索状模糊影；团 块内可见薄壁、和空洞，薄壁壁内光滑， 空洞内有低密度液化灶和散在悬浮气体 影；CT影像显示均为见气-液平面；10例 患者的CT影像均显示病灶邻近胸膜增厚情 况，8例患者的CT影像显示肺门和(或)纵 隔淋巴结增大，2例患者的CT影像显示右 肺斑片状影合并纵隔脓肿。结论 X线平片 检查胸部放线菌病无法显示空洞、液化和 气体病灶，诊断价值有限，而CT体层摄影 术可显示病灶的具体细节，具有特征性， 具有较高的诊断价值。

Objective Analysis actinomycosis of the chest X-ray plain film and CT tomography imaging characteristics, the evaluation of the value of X-ray and CT in the diagnosis of the disease. Methods Choose from January 2005 to February 2015, in our hospital during the period, confirmed by laboratory tests for patients with thoracic actinomycosis 10 cases as the research object, all patients were performed X-ray plain film and CT tomography; CT images with a standard algorithm, multi plane restructuring image, image characteristics. Results This group of 10 cases with X-ray is, lateral chest plain film are displayed as mass and large dense shadow, but did not show empty, liquefied gas and lesions; CT examination results showed that 52 actinomycetes lesions involving 18 normal; 8 cases of patients with CT images show that mass as the main lesions, lung see more spots or patch around the lesions and the funicular fuzzy shadow; Mass in the thin wall, and hollow, thin wall smooth, hollow with low density liquefaction and scattered suspended gas oven shadow; CT scan showed to see gas-liquid surface; CT images of 10 cases were showed lesion adjacent pleural thickening, 8 cases of patients with lung CT images showed the door increases and/or mediastinal lymph nodes, 2 cases of right lung CT images showed patchy shadow merge mediastinal abscess. Conclusion X-ray plain film to check the chest actinomycosis cannot view demonstrates the focal area of cavity, liquid and gas, limited diagnostic value and CT tomography can display the details of the lesion, has the characteristic, has high diagnostic value.