肺内淋巴结的HRCT特征分析

发布时间：2018-12-14 23:30

【摘要】：目的探讨肺内淋巴结(IPLNs)的高分辨率CT(HRCT)特征,提高对该病的认识和诊断正确率。方法回顾性分析经手术病理证实的IPLNs患者58例,术前均行胸部HRCT检查,分析内容包括结节的大小、密度、形态、边缘、位置、分布、与胸膜的关系等。病理切片观察结节中心成分及周边结构特点。结果 58例患者共68个结节,大小约(7.03±1.73)mm,全部位于气管隆突水平以下,大部分位于胸膜下区(88.2%),形态不规则(85.3%),除1例表现为磨玻璃密度外,其余均为实性结节。结节边缘可见特征性的细线样影,常规CT多仅发现0~1条(85.3%),HRCT多可发现2条及以上(91.2%),60个结节(88.2%)均发现至少1条线样影与胸膜相连。病理证实淋巴结内均有炭末沉着,边缘细线样结构为增粗的小叶间隔。结论 IPLNs是较少见的肺内良性结节,影像表现具有一定特点。HRCT能准确地发现特征性的细线样影,对于诊断具有重要价值。
[Abstract]:Objective to investigate the high resolution CT (HRCT) features of intrapulmonary lymph node (IPLNs) in order to improve the recognition and diagnostic accuracy of the disease. Methods 58 patients with IPLNs proved by operation and pathology were examined with HRCT before operation. The results included the size, density, shape, edge, location, distribution and the relationship with pleura. The central components and peripheral structure of the nodules were observed by pathological sections. Results there were 68 nodules in 58 patients, all of which were located below the level of tracheal protuberance (7.03 卤1.73) mm, most of them were located in the subpleural area (88.2%), and the shape was irregular (85.3%). All of them were solid nodules except for one case with ground glass density. Characteristic thin line shadow was observed at the edge of the nodules. Only one line shadow was found in conventional CT (85.3%), HRCT), 2 or more (91.2%) were found in 60 nodules (88.2%), and at least one line shadow was found in 60 nodules (88.2%). The lymph nodes were characterized by carbon sequestration and thickened interlobular septum. Conclusion IPLNs is a rare benign pulmonary nodule, and its imaging features have some characteristics. HRCT can accurately detect the characteristic fine line like shadow, which is of great value in diagnosis.
【作者单位】：苏州大学附属第一医院影像中心;苏州大学附属第一医院病理科;
【分类号】：R563;R816.41

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