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目的探讨肝脏血管平滑肌脂肪瘤(hepatic angiomyolipoma,HAML)的多层螺旋CT影像学表现特征及其与病理学基础的相关性,以进一步提高CT诊断的准确性。方法收集2008年11月2010年12月经手术病理证实的16例HAML患者。所有患者均行螺旋CT平扫及动脉期、门脉期增强检查,重点观察HAML的分型及其相应CT表现及影像-病理的相关性。结果 16例患者共20个病灶,19个为稍低密度病灶,其中11个病灶内可见明显的脂肪密度影;1个为稍高密度病灶。动脉期所有病灶均有不同程度的强化表现,15个病灶内可见到较明显条状及扭曲的血管影。门脉期15个病灶有持续强化。结论多层螺旋CT能准确反映HAML的分型及其病理特征,对临床表现不典型患者的诊断和鉴别诊断有较大诊断价值。
Objective To investigate the multi-slice spiral CT features of hepatic angiomyolipoma (HAML) and its correlation with pathology, so as to further improve the accuracy of CT diagnosis. Methods Totally 16 HAML patients confirmed by surgery and pathology in November 2008 and December 2010 were collected. All patients underwent spiral CT scan and arterial phase, portal phase enhanced examination, focusing on the classification of HAML and its corresponding CT findings and image - pathological correlation. Results Twenty lesions were found in 16 patients and 19 lesions were slightly lower density. Among them, 11 lesions showed obvious density of fat density and 1 was slightly high density lesions. Arterial lesions all have different degrees of enhanced performance, 15 lesions can be seen more obvious strip and distorted blood vessels. Portal vein 15 lesions have continued to strengthen. Conclusion Multi-slice spiral CT can accurately reflect the classification of HAML and its pathological features, and has great diagnostic value in the diagnosis and differential diagnosis of patients with atypical clinical manifestations.