肝脏局灶性结节增生多层螺旋CT表现及鉴别诊断

目的探讨肝脏局灶性结节增生(focal nodular hyperplasia,FNH)的多层螺旋CT表现及鉴别诊断,提高对本病的认识。方法收集我院经手术及病理证实的FNH病例14例,均行多层螺旋CT三期增强扫描,分析其CT影像表现特点。结果平扫病灶大多数为低密度(12/14),少数为等密度(2/14);增强扫描动脉期14例均有明显强化,其中10例可见中心低密度瘢痕,10例可见粗大动脉影与病灶相连;门脉期及延迟期扫描强化均有衰减,10例呈稍高或等密度,4例呈稍低密度,10例有中心瘢痕病例中6例有延迟强化,4例未见强化。结论 FNH具有一定的CT表现特征,CT检查具有重要的诊断及鉴别诊断价值。

Multislice spiral CT manifestation and differentiate diagnosis of focal nodular hyperplasia of the liver

Objective To investigate the CT manifestation of focal nodular hyperplasia of liver;and raise the level of diagnosis and differential diagnosis of the disease. Methods To collect 14 cases of focal nodular hyperplasia of liver by surgery and pathology confirmed, enhanced scanning was performed in 14 patients with multislice spiral CT muhiphase scanning before operation. The CT manifestation was reviewed and analyzed. Results In 14 cases, On plain CT scans, 12 FNH lesions showed uniformity or not uniformity low density areas. In the arterial phase, all lesions were vigorously and homogeneously enhanced, central low density scar can be seen in 10 cases, dilated arteries were seen in the center or peripheral area in 10 cases. In the portal venous phase and delayed phase, enhance degree decreased in all cases, 10 lesions remained slightly high density or uniformity,4 lesions turned to slightly low density. Central scar was found in 10 FNH lesions and 6 demonstrated delay enhancement. Conclusion The CT examination have some features, it is very valuable to the diagnosis and differentiate diagnosis in Focal Nodular Hyperplasia of liver.