不典型肝脓肿螺旋CT三期增强扫描图像分析

Triple-phase contrast enhanced CT appearances of atypical hepatic abscess

目的 :探讨不典型肝脓肿的 3期增强CT表现特征。方法 :回顾分析 12例不典型肝脓肿 ,全部病例均行多层螺旋CT平扫及 3期增强扫描。结果 :12例中 3例为多发病灶 ,9例为单发病灶 ,CT平扫表现无特征性。 3期增强扫描可见 :①肝段短暂强化征 ;②蜂窝征、簇形征 ;③晕征 ;④边缘逐渐强化征。结论 :上述 4个征象是不典型肝脓肿 3期增强扫描的特征性表现 。

Objective:To study the features of atypical hepatic abscess (AHA) in triple phase enhanced CT.Methods:12 cases with AHA were retrospectively analyzed.All cases were performed plain and triple phase enhanced scanning with multi slice spiral CT.Results:There were multiple lesions in 3 cases and single in 9 cases.The plain CT showed no specific features.There were characteristic features on triple phase contrast enhanced CT as follows: transient segmental liver enhancement,honeycomb sign or cluster sign,halo sign,marginal gradual enhancement.Conclusion:The CT features mentioned above are very specific for AHA,and very valuable for diagnosis and differential diagnosis of AHA.