细菌性肝脓肿的CT表现及鉴别诊断

目的:探讨肝脓肿的各种CT表现及鉴别诊断,分析误诊原因。方法:回顾资料完整的62例,其中30例经手术治疗,8例穿刺引流,24例经药物治疗后复查病灶缩小或消失。结果:病变多位于右叶,单发居多,形态为圆形或卵圆形。其特征表现为①平扫均为低密度,增强扫描密度多不均匀。②病灶腔内分隔呈多房及花瓣状。③脓腔内积气。④环靶征。⑤周围环状强化。⑥强化后病灶附近可见小脓肿。结论:细菌性肝脓肿CT表现与病变进程有密切关系,采用平扫和强化可提高诊断准确性,避免误诊。

The CT Scanning Features and Differential Diagnosis of Bacterial Hepatic Abscess

Objective: To study the CT scanning feature and differential diagnosis of bacterial hepatic abscess as well as to analyze the cause of misdiagnosis. Methods:Sixty-two cases with complete records were studied in whom, 30 cases had received operative treatment, 8 cases received puncture and drainage, 24 cases received drug treatment.All loci reduced or disappeared after treatment.Results: Most foci with round or oval in shape lie in the right liver lobe. Its characteristics were:1, plain scanning was low density while contrast enhance(CE)was not uniform in density. 2, the cavitating lesion contained most internal septa or petaloid.3.pneumotosis in cavity.4.round target sing.5.increased density of peripheral rim on CE. 6, litter abscess around loci after CE. Conclusion:Combine plain scanning with CE can promote the accuracy of diagnosis and avoid misdiagnosis of bacterial hepatic abscess.