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目的探讨局灶性机化性肺炎的CT表现特征及其病理相关性。方法对20例经病理学证实的局灶性机化性肺炎患者的CT资料进行回顾性分析,并将病变的CT表现与相应的病理改变进行对照。结果 20例局灶性机化性肺炎中CT表现结节型8例,肿块型6例,浸润实变型6例。表现为圆形或类圆形7例,不规则形13例。边缘分叶7例,毛刺8例,尖角样改变7例。平扫密度均匀10例,密度不均匀10例。4例见空泡征,9例见充气支气管征,4例伴空洞,2例伴钙化。16例增强检查中,5例均匀强化,11例不均匀强化,其中9例内部可见无强化的坏死灶。16例与邻近胸膜有关系。与病理对照分析:明显强化区主要为炎性肉芽肿及较多炎细胞浸润部分,而病灶中央出现的无强化区为脓肿形成区域。结论局灶性机化性肺炎的CT表现多样,但有一定的特征性,在一定程度上可反映其病理特点,正确诊断可以避免不必要的手术。
Objective To investigate the CT features and pathological features of focal machine-made pneumonia. Methods The CT data of 20 patients with pathologically confirmed focal organic pneumonia were retrospectively analyzed, and the CT findings of the lesions were compared with the corresponding pathological changes. Results The CT findings of 20 cases of focal organic pneumonia were nodular in 8 cases, mass in 6 cases and infiltrating consolidation in 6 cases. 7 cases showed round or round, 13 irregular shaped. 7 cases of edge lobes, burr in 8 cases, sharp-like changes in 7 cases. Plain scan density in 10 cases, 10 cases of uneven density. 4 cases see vacuolar sign, 9 cases see bronchogenic sign, 4 cases with empty hole, 2 cases with calcification. Of the 16 patients who underwent enhanced examination, 5 had uniform enhancement and 11 had non-uniform enhancement, 9 of which showed no enhancement of necrosis. 16 cases and the adjacent pleural relationship. Pathological analysis and control: significantly enhanced area is mainly inflammatory granuloma and more infiltration of inflammatory cells, while the lesion appeared in the absence of enhanced area for abscess formation area. Conclusions The CT manifestations of focal opportunistic pneumonia are diverse, but they have some characteristic features that reflect the pathological features to a certain extent. Correct diagnosis can avoid unnecessary surgery.