摘要
目的:探讨尘肺和粟粒性肺转移瘤的常规CT及高分辨CT(HRCT)特征,以提高肺内多发小结节的CT鉴别诊断。方法:回顾性分析44例尘肺和30例粟粒性肺转移瘤的CT资料,观察小结节的特点及其它并发征象。结果:尘肺组CT表现:①小结节特点:大小不均匀35例(79.55%)、密度不均匀40例(91.00%)、分布不均匀40例(90.91%),边界清晰38例(86.36%),结节钙化28例(63.64%);②其它伴发征象:团块28例(63.64%),肺气肿36例(81.82%),小叶间隔增厚36例(81.82%),磨玻璃密度12例(27.27%),胸膜增厚30例(68.18%)、其中叶间裂增厚20例(45.45%),肺门和纵隔淋巴结增大25例(56.82%)、钙化32例(72.73%)。粟粒性肺转移瘤组的CT表现:①小结节特点:大小不均匀18例(60%)、密度不均匀13例(43.30%)、分布不均匀16例(53.33%),边界清晰21例(70%),多发结节内空洞28例(93%);②其它伴发征象:小叶间隔增厚25例(83.33%),胸膜增厚16例(53.33%),肺门和纵隔淋巴结增大18例(60%)、钙化5例(16.67%)。结节密度、分布不均匀、结节钙化及肺气肿、叶间裂增厚、淋巴结钙化在尘肺的发生率高于粟粒性肺转移瘤(P<0.05);多发结节小空洞在粟粒性肺转移瘤的发生率高于尘肺(P<0.05)。结论:尘肺和粟粒性肺转移瘤的CT表现有一定特征;有助于对两者的鉴别诊断。
Objective：To analyzes routine CT and high-resolution CT（HRCT） characteristics of pneumonoconiosis and miliary lung metastases so as to improve the CT differential diagnosis between pulmonary multiple nodules.Methods：CT and HRCT data of 44 patients with pneumonoconiosis and 30 patients with miliary lung metastases are retrospectively reviewed;and nodular characteristics and other complications are observed.Results：CT characteristics in pneumonoconiosis group are as follows： ① Nodular characteristics include nodules with the inhomogeneous size in 35 cases（79.55%）,inhomogeneous densitiy in 40 cases（91.00%）,inhomogeneous distribution in 40 cases（90.91%）,sharpness of border in 38 cases（86.36%）,nodules calcification in 28 cases（63.64%）;② Other complications include intrapulmonary bolus in 28 cases（63.64%）,emphysema in 36 cases（81.82%）,interlobular septal thickening in 36 cases（81.82%）,ground-glass opacity in 12 cases（27.27%）,pleural thickening in 30 cases（68.18%）,among which interlobular fissure thickening in 20 cases（45.45%）,lymphadenovarix of hilar and mediastinum in 25 cases（56.82%）,calcification in 32 cases（72.73%）.CT characteristics in metastasis group include： ① Nodular characteristics consist of nodules with the inhomogeneous size in 18 cases（60%）,inhomogeneousdensity in 13 cases（43.30%）,inhomogeneous distribution in 16 cases（53.33%）,sharpness of border in 21cases（70%）,multiple nodules cavitations in 28 cases（93%）;② Other complications comprise interlobular septal thickening in 25 cases（83.33%）,pleural thickening in 16 cases（53.33%）,lymphadenovarix of hilar and mediastinum in 18 cases （60%）,calcification in 5 cases（16.67%）.Inhomogeneous nodules in density and distribution,calcification,emphysema,interlobular fissure thickening,lymph node calcification in pneumonoconiosis are more than those in metastasis;multiple nodules cavitations are more obvious in metastasis than those in pneumonoconiosis.Conclusion
出处
《医学影像学杂志》
2010年第3期332-335,共4页
Journal of Medical Imaging
关键词
尘肺
粟粒性肺转移瘤
体层摄影术
X线计算机
鉴别诊断
Pneumonoconiosis
Miliary Lung Metastases
Tomography
X-ray computed
Differential diagnosis
