目的探讨肝脏局灶性结节增生(FNH)在螺旋CT扫描中的表现及诊断价值。方法回顾分析12例经病理证实的肝脏FNH的螺旋CT平扫及动态增强资料。结果12个病灶平扫低密度7个,等密度5个,其中8个中央见星芒状更低密度区;增强扫描:动脉期11个病灶明显强化,1个中等强化,病灶中央更低密度区无强化,5例病灶中央或周围可见增粗的血管影。门脉期及延迟期:2个等或略低密度,10个为略高密度,8例中央瘢痕中6例有延迟强化,2例无强化。结论FNH在螺旋CT平扫和动态增强扫描中具有特征表现,对FNH的确诊有重要价值。 Objective To investigate the performance and diagnostic value of hepatic focal nodular hyperplasia (FNH) in spiral CT scans. Methods Retrospective analysis of 12 cases of pathologically confirmed liver FNH spiral CT scan and dynamic enhancement data. Results The density of 12 lesion was 7, the density was 5, of which 8 were central asteroid lower density area; enhanced scan: 11 lesions in arterial phase were significantly enhanced, 1 moderately enhanced, lesion central lower density No enhancement of the area, 5 cases of central or peripheral thickening of the blood vessels can be seen. Portal venous phase and delayed phase: 2 or slightly lower density, 10 slightly higher density, 8 cases of central scar delayed enhancement, 2 cases without enhancement. Conclusions FNH has characteristic features in spiral CT plain scan and dynamic contrast-enhanced scan, and it has important value for the diagnosis of FNH.