肺炎性假瘤误诊为肺癌的HRCT表现及分析

目的：探讨肺炎性假瘤的HRCT征象，分析其误诊为肺癌的原因，提高诊断水平。方法：回顾性分析31例经手术或穿刺活检后病理证实的，之前被误诊为肺癌的肺炎性假瘤的HRCT征象，其中18例行增强扫描。结果：误诊病例中位于胸膜下17例，晕征26例，毛刺征23例分叶征19例，胸膜增厚21例，血管集束征7例，空泡征4例，均匀强化13例，非均匀强化7例等等。结论：HRCT对肺内炎性假瘤的诊断有重要价值，但全面综合分析CT表现并结合临床病史有助于正确诊断。

Analysis of HRCT Characteristics of Pulmonary Inflammatory Pseudo-Tumor Were Misdiagnosed as Lung Cancer

Objective： To analyze the HRCT characteristics of pulmonary inflammatory pseudo-tumor and the causes of misdiag- nosed as lung cancer. To improve the diagnostic level. Methods：To review 31 cases with pulmonary inflammatory pseudo-tumors which were misdiagnosed as lung cancer, in diameter underwent high resolution computer tomography （HRCT）scans of the chest and 18 cases underwent additional enhanced CT scans .All cases went confirmed by operations and pathology .Results：All 31 lesions with 17 located near the pleura, there were halo sign 26,the margins were spiculate 23,shoal lobulated sign 19, adjacent pleural thickening 21,vessel convergence sign 7, vacuole sign 4,10cases were enhancement ,the others were non-enhancement etc. Conclusion：HRCT has important value in the diagnosis of pulmonary inflammatory pseudo-tumors, but the overall analysis varied CT signs in beneficial to the definite di- agnosis of the diseases.