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目的 研究肺炎性假瘤的CT影像,探讨其相对特异的CT表现。方法 分析13例手术病理证实的肺炎性假瘤的CT材料,结合文献复习,评价其影像表现的诊断意义。结果 13例肺炎性假瘤中,11例为圆形或类圆形,6例发生于右肺下叶,左肺下叶占4例。9例病变边缘清楚,4例出现毛刺影,3例与胸膜粘连。7例病变内见不同程度低密度影,其中2例出现点状钙化,1例出现偏心性空洞。增强后7例出现强化,其中4例瘤体周边部强化较中央部明显 结论 CT发现肺内边界清楚的孤立性类圆形肿块,增强后病灶周围强化程度高于中心部,又不具有小肺癌或结核球的通常特点的应首先考虑炎性假瘤。
Objective To study CT images of pulmonary inflammatory pseudotumor and to explore its relative CT features. Methods Thirteen cases of pathologically confirmed pulmonary inflammatory pseudotumor CT material, combined with the literature review, evaluate the diagnostic significance of its imaging findings. Results Thirteen cases of pneumococcal pseudotumor were round or round, 6 cases occurred in the lower lobe of the right lung and 4 cases of the lower lobe of the left lung. 9 cases of clear edge of the margin, 4 cases of burr shadow, 3 cases and pleural adhesions. Seven cases showed varying degrees of low-density lesions, of which 2 cases appeared punctate calcification, 1 case of eccentric cavities. After enhancement, 7 cases showed enhancement, among them, 4 cases had obvious enhancement of the peripheral part of the tumor compared with the central part. CT showed a clear isolated round lump with clear border of the lung. The enhancement around the enhanced lesion was higher than the central part, Or the general characteristics of tuberculoma should first consider inflammatory pseudotumor.