摘要
目的：探讨螺旋CT在肾细胞癌诊断中的应用价值。方法：回顾分析经手术病理证实的76例肾细胞癌患者的螺旋CT表现，其中男53例，女23例，年龄20~82岁（平均42岁）。结果：呈圆形或椭圆形70例，边界较清楚58例；有假包膜41例；平扫密度呈较均匀稍低密度54例。50例（82％）肿瘤呈重度强化，5例（8％）呈中度强化，6（10％）例呈轻度强化。53例（87％）强化不均匀。41例行动态增强扫描，其中36例（88％）的病灶强化呈“快进快退”表现。CT分期准确率为95％。结论：螺旋CT可有效帮助肾癌的术前诊断与鉴别诊断。
Objective： To evaluate the characteristic appearances of RCC in helical CT scan. Methods： Helical CT findings in 76 cases（53 male, 23 female） with RCC proved by surgical and pathological specimens were analyzed retrospectively. Results：41 cases（54%） showed pseudocapsule and 58 cases（76%） showed clear shape; On the non--contrast scan, RCC appears slightly-- hypodensity in 54 cases（71%）; on post--contrast scan, heterogeneous enhancement were found in 53 cases（87%）; 50 cases （82%） showed significant enhancement, 5 cases （8%） showed moderate enhancement, 6 cases（10 %） showed mild enhancement. 88% （36/41） of the eases showed strong enhancement in the cortical phase but weak enhancement in the late phase. Conclusion： The helical CT scan is useful for the diagnosis and staging of RCC.
