不典型肝脓肿的CT诊断  

CT Diagnosis of Atypical Liver Abscess

作　　者：邹利光[1] 张冬[1] 李妍瑜[2] 廖翠薇[1] 戚跃勇[1] 程相晨[1] 

机构地区：[1]第三军医大学新桥医院放射科,重庆400037 [2]第三军医大学西南医院放射科

出　　处：《实用放射学杂志》2003年第8期713-716,共4页Journal of Practical Radiology

摘　　要：目的　研究不典型肝脓肿的CT表现 ,重点是增强CT和动态增强CT表现。方法　回顾分析了 92例手术、穿刺抽吸或临床证实的肝脓肿病例的CT资料 ,92例均行CT平扫 ,65例行增强扫描 ,其中不典型CT表现的肝脓肿 2 6例。结果　不典型肝脓肿多见于细菌性肝脓肿的化脓性炎症期或脓肿形成初期 ,CT平扫多表现为低密度肿块 ,增强扫描可见 :(1)肿块缩小征 ;(2 )周围充血征 ;(3 )“簇状征” ;(4 )“花瓣征” ;(5 )延时强化征。结论　不典型肝脓肿CT平扫表现无特征性 ,增强扫描尤其是动态增强和延时扫描有一定特征性 。Objective To study the CT appearances of atypical liver abscess (ALA), with emphasis on the enhanced and dynamic enhanced CT.Methods Ninety-two cases of liver abscesses,proved by surgery, aspiration or clinical data were reviewed. All of them were examined by plain CT scan, 65 cases were examined by enhanced scan. Among them,26 cases were of atypical CT features.Results ALA was mostly seen in the suppurative inflammation stage or the initial abscessation stage of bacterial abscesses. In plain CT scan, the abscesses usually exhibited as hypodense mass. On enhanced CT scan, the following signs should be noticed: (1) mass diminution sign; (2) peripheral congestion sign; (3) cluster sign;(4) rosette sign, and (5) delayed enhancement sign. Conclusion The plain CT appearance of ALA is nonspecific. The enhanced CT, especially the dynamic enhanced CT, is characteristic so the diagnosis of ALA could be improved.

关 键 词：不典型肝脓肿 CT表现 影像学诊断 占位病变 肝癌 肝血管瘤 

分 类 号：R575.4[医药卫生—消化系统] R814.42[医药卫生—内科学]