摘要
目的:研究肝脏局灶结节性增生(FNH)的影像表现。方法:回顾性分析了经病理证实的12例14个病灶的FNH的CT和磁共振成像(MRI)表现,并与病理对照,探讨FNH的影像特点。结果:12例14个病灶,CT平扫低密度11个,等密度3个;增强动脉期扫描所有病灶均有明显强化,4个病灶中心见疤痕,门脉期扫描9个病灶为等密度,5个为稍高密度,延迟期1例病灶中心疤痕有延迟强化;有7例FNH行MRI检查,T1WI呈等低信号,T2WI呈等高信号。结论:螺旋CT多期扫描或MRI检查可充分反映FNH的病理特征,具有很高的诊断价值。
Objective: To evaluate the comprehensive imaging finding of focal nodular hyperplasia(FNH) of the liver. Methods: In 12 patients, 14 FNH lesions were confirmed pathologically. The imaging features(CT and MRI)were retrospectively reviewed and correlated with pathologic findings. Results: In 12 patients with 14 FNH lesions,on pre-contrast scans, 11 of 14 lesions were hypodense, the other three lesions were isodense. On the arterial phase scans, all lesions were markedly and hom-ogeneously enhanced. Central scar was found in four FNH lesions. On the portal phase and delayed phase scans, nine of 14 lesions turned to isodense,five lesions remained slightly hyperdense, one of four central scar showed late enhancement. Seven cases underwent MRI. The lesion showed iso or hypo-intensity on T1WI and slightly hyperintensity on T2WI. Conclusion: Multiphase helical CT or MRI scanning can fully reflect the pathologic features of FNH. Therefore, it is of great value in diagnosing FNH.
出处
《南京医科大学学报（自然科学版）》
CAS
CSCD
北大核心
2005年第7期509-511,共3页
Journal of Nanjing Medical University(Natural Sciences)
