直径<3.0cm肺部结核结节与周围型肺癌的CT影像对比研究

目的:进一步评价结核结节和肺癌的CT影像特点和鉴别诊断价值。材料与方法:对比分析直径3.0cm的结核结节60例和肺癌80例的CT影像。结果:结核结节以边缘光滑或清楚、无分叶而有小空洞、钙化、胸膜增厚粘连、卫星病灶或病灶周围炎多见、并在短期内动态形态改变。周围型肺癌以边缘毛糙、浅分叶、空泡征、空气支气管征、典型胸膜凹陷征多见,短期动态形态不变。结论:薄层CT扫描可提供有价值的征象,短期内动态观察是二病重要鉴别手段。

CT Images in Diferentiating Tuberculosis Nodules from Lung Cancers with Diameters Less Than 3 cm

Purpose： To find out the CT characteristics of tuberculous nodules and lung cancers with diameters less than 3cm, and to evaluate their value in diferentiating the two diseases. Materials and Methods： the CT images in sixty pa- tients with tuberculous nodules and eighty lung cancers patients with lesions less than 3cm in diameter were compared. Re- suits： Smooth or clear edge, non - lobulation, small cavity, calcification, pleural thicking and adhesion, satellitic nidus and perifocal inflammation were found predominant in tuberculous nodules with short - term dynamic changs in shapes, while shaggy border, shallow lobulation, vacuolus sign, air - bronchogram and typical pleural indentation were predominant in lung cancers without dynamic changs in shapes. Conclusion ： thin - slice CT scanning can provide useful images, which by short - term observations are important for differentiating these diseases.