摘要
目的 :探讨直径小于 3cm孤立性肺结节 (SPN)的CT表现 ,以提高CT对SPN定性诊断的正确性。方法 :分析经CT扫描、CT导引下肿块穿刺活检和手术病理证实的直径小于 3cm的SPN 6 9例。结果 :良性结节 15例 ,恶性结节 5 4例 ;良性结节CT表现为圆形或椭圆形 ,分叶少而浅 ,结节内钙化多见 ,边缘多数有长毛刺 ;恶性结节形态多不规则 ,分叶多且深 ,周围以短细毛刺常见 ,胸膜凹陷征、其内空泡征、血管截断或聚集征较常见。结论 :CT是鉴别肺内孤立性小结节良、恶性的一种理想检查方法 。
Objective:To study CT diagnostic characteristics of solitary pulmonary nodule.Methods:CT-guided percutaneous transthoracic needle biopsy and surgical-pathology of 69 cases with SPN was proved by us.Results:Of 69 cases studied,54 were malignant ,15 cases were benign lesions.There is greater possilbility of pulmonary carcinoma with SPNs 3 cm in diameter,lobulation,spiculation,small vacuole sign and pleural retraction.Round shape,density uniformity,well-edged,non-burr and special lobulation is characteristics of benign pulmonary nodule in CT scanning.Conclusion:CT is one of best examine methods to defferentiating nature of SPNs less than 3 cm in diameter.
出处
《医学影像学杂志》
2002年第5期345-347,共3页
Journal of Medical Imaging
