不典型肝脓肿的螺旋CT诊断

Spiral CT diagnosis of atypical hepatic abscess

目的 探讨不典型肝脓肿 (AHA)的螺旋CT表现 ,着重其增强CT表现。方法 回顾性分析经手术病理证实或穿刺抽吸证实的 14例不典型肝脓肿的螺旋CT平扫及增强资料。结果 不典型肝脓肿平扫多呈低密度肿块 ,其增强后可见“实质充填征” ,“蜂房征” ,“环内环征” ,“一过性强化征”。结论 不典型肝脓肿平扫缺乏特异性 ,增强后以及动态增强后可见一些特征性表现 ,可提高不典型肝脓肿的诊断准确性。

Objective: To analyze the features of atypical hepatic abscess(AHA), with emphasis on the enhanced CT appearances. Methods: Retrospectively reviewed the plain and enhanced CT scan data of totally 14 AHA, which were proved either by surgical and pathological finding or by abscess drainage.Results:In plain CT scan . the abscesses usually exhibited as hypodense nass, and on enhanced CT scan following Special signs could be seen: parenchyma filling sign, honeyconb sign, rings inside rings sign, transient enhanced sign.Conclusion:The plain CT appearance of AHA is nonspecific, The enhanced CT and the dynaaic enhanced CT, have soae characteristics so the diagnosis of AHA could be inproved.