肺炎性结节的4排螺旋CT征象分析

CT Analyses 4 Row of Helix in Pneumonia Tubercle Sign

目的:探讨肺炎性结节的CT诊断和鉴别。方法:20例常规胸部CT和高分辨率CT(HRCT)扫描,炎性假瘤12例手术病理证实,8例球形肺炎随访1～2月明显缩小或吸收。另按CT序号收集同期病理证实≤3 cm周围型肺癌20例,结核球8例与之鉴别。结果:17/20肺炎性结节居上叶后段或下叶背段、基底段肺周边紧贴胸膜;形态多样14/20,类圆形6/20;轮廓模糊不规则和长条索18/20;空气支气管征5/20,空洞4/20,密度均匀10/20;15/20周围有较明显点片絮状炎症表现,16/20不同程度胸膜增厚。结论:大多数肺炎性结节的CT表现与周围型肺癌、结核球者是不同的。

Objective：To explore CT diagnosis and differetiation of inflammatory nodule of lung.Methods：20 cases of inflammatory pseadotumor imaged with routine chest CT and high resolution CT scans,of them,12 eases were confirmed by pathology and the focus of spherical pneumonia were shrinked or absorbed followed up for1-2 months.In additon,20 cases with peripheral cancer of lung（≤3 cm in diameter） and g cases with tubereuloma confirmed by pathology were collected in responding period for differentiating diagnosis.Result：The inflammatory nodules of lung were usually situated at the periphery of segment of upper lobe or dorsal segment and basal segment of lower lobe,the noduleas were always tightly closed to the pleura（17/20）,The CT findings were：VARIOUS SHAPE（14/ 20）,round-li-ke appearance（6/20）.Indistinct and irregular with long cords（18/20）,eavity（5/20）,air bronchogram（4/20）,hemogeneous in density（10/20）,olovions infiammitory shadow around the nodules（15/20）and local pleural thickness（16/20）.Conclusion：The CTfeatures of most of pulmonary inflammatory nodules are differant from that of peripheral pulmonary cancer and tuberculoma.