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目的 :探讨不典型肝脓肿的超声和CT表现特点。方法 :总结分析 2 3例经临床和 (或 )病理确诊的不典型肝脓肿的超声和CT表现。结果 :不典型肝脓肿超声表现大多为低回声类圆形肝内病灶 ,边界模糊 ,后方回声增强 ,也可表现为高回声区 ,边界模糊 ,内部回声不均 ,门静脉、肝静脉正常。CT表现为平扫边缘模糊的低密度灶 ,增强后动、静脉期病灶边缘及分隔明显强化 ,平衡期及延时后病灶较前缩小 ,但无肝血管瘤的完全“充填”征象。结论 :超声和CT对不典型肝脓肿的诊断有重要价值 ,特别是超声引导下的穿刺活检术和螺旋CT检查能为临床提供准确的诊断
Objective: To investigate the features of ultrasound and CT in atypical liver abscess. Methods: Twenty-three cases of atypical liver abscess diagnosed clinically and / or pathologically were analyzed retrospectively. Results: Most cases of atypical liver abscess showed hypoechoic round intrahepatic lesions with fuzzy boundaries and enhanced echogenic back. They also showed hyperechogenicity, blurred boundaries, uneven internal echo, normal portal vein and hepatic vein. The CT showed low-density lesions with sweeping edges and blurred edges. After the enhancement, the margins and segregation of the lesions in the arteriovenous and venous phases were significantly enhanced. The lesion at the balance and post-contrast period was smaller than before. However, there was no complete “filling” sign of hepatic hemangiomas. Conclusion: Ultrasound and CT are of great value in the diagnosis of atypical liver abscess, especially ultrasound-guided biopsy and spiral CT can provide accurate diagnosis for clinical diagnosis