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目的分析肝泡状棘球蚴包虫病(hepatic alveolar echinococcosis,HAE)的螺旋CT征象。方法21例经手术病理证实的HAE均行了螺旋CT扫描,其中15例行动态增强双期扫描。分析HAE的CT表现并与手术病理对照。结果21例共检出25个病灶,所有病例均表现为不均匀的低密度或混杂密度肿块影,形态不规则,平扫边界欠清,增强扫描后不强化,但边界显示清楚。所有病灶均伴有不同程度的钙化,15例有中心液化坏死,16例边缘出现小囊泡征。结论HAE的螺旋CT表现具有一定的特征性,能为诊断和临床治疗提供可靠的影像学依据。
Objective To analyze the spiral CT signs of hepatic alveolar echinococcosis (HAE). Methods Twenty - one cases of HAE confirmed by surgery and pathology were performed spiral CT scan. Among them, 15 patients underwent dynamic double - phase scanning. The CT findings of HAE were analyzed and compared with the surgical pathology. Results A total of 25 lesions were detected in 21 cases. All cases presented as uneven low density or mixed density mass with irregular shape, less clear boundary and no enhancement after enhanced scanning, but the boundary was clear. All lesions were associated with varying degrees of calcification, 15 cases of central liquefaction necrosis, 16 cases of edge of the small vesicle sign. Conclusion The spiral CT findings of HAE have certain characteristics, which can provide a reliable imaging basis for diagnosis and clinical treatment.