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目的:通过探讨肝脓肿的CT征象及特征性表现,提高肝脓肿诊断的准确率,鉴别不典型肝脓肿与肝癌。方法:对经临床、手术、穿刺和病理证实的35例肝脓肿病例进行回顾性分析,总结各病例的影像学特点。结果:35例患者中有17例患者多处发生脓肿,其中CT特征有8例呈圆形或椭圆形,6例呈蜂窝状,3例呈不规则形状。单发脓肿18例,CT特征有10例呈圆形或椭圆形,8例呈蜂窝状。肝脓肿平扫表现为密度低于周围肝实质的病灶,部分病灶内可有气体,增强扫描时的环靶征、有分隔并强化为典型肝脓肿的特征表现。结论:CT平扫及动态增强扫描可以较准确诊断肝脓肿、减少误诊率及漏诊率。
Objective: To improve the accuracy of diagnosis of liver abscess, and to identify atypical liver abscess and liver cancer by exploring the CT signs and characteristics of liver abscess. Methods: 35 cases of liver abscess confirmed by clinical operation, puncture and pathology were retrospectively analyzed, and the imaging features of each case were summarized. RESULTS: Seventeen of 35 patients developed abscesses abscess. The CT features were round or oval in 8 cases, honeycomb in 6 cases and irregular shape in 3 cases. 18 cases of single abscess, CT features 10 cases were round or oval, 8 cases were honeycomb. Hepatic abscess showed a lesion whose density was lower than that of the surrounding liver parenchyma. Some of the lesion had gas inside, which enhanced the ring sign of the lesion and separated and enhanced the characteristic manifestations of typical liver abscess. Conclusion: CT scan and dynamic contrast-enhanced scan can diagnose liver abscess more accurately and reduce misdiagnosis rate and misdiagnosis rate.