MRI对肝不典型增生结节癌变的诊断价值  

The Value of MR Imaging in the Diagnosis of Hepatocarcinogenesis within Dysplastic Nodules

作　　者：方金洲 郑建军[2] 方彦成[3] 余小忠 李岳兴 王晓玲 杨正汉[4] 

机构地区：[1]浙江省衢化医院放射科,衢州324004 [2]浙江省宁波市第二医院放射科 [3]长春中医药大学附属医院MRI室 [4]卫生部北京医院放射科

出　　处：《中国中西医结合外科杂志》2012年第2期124-127,共4页Chinese Journal of Surgery of Integrated Traditional and Western Medicine

基　　金：北京市自然科学基金(7063091);北京市科委"首都特色临床医学应用研究"项目(D101100050010056)

摘　　要：目的:探寻肝不典型增生结节癌变的早期MRI表现,并评价其诊断价值。方法:对29例32个肝不典型增生结节癌变灶常规MRI及动态增强图像进行分析,并经手术及病理证实。结果:MRI检出32个癌变灶中的25个,检出率78%;25个病灶中,在T1WI上呈略高信号13个,等信号7个,略低信号5个;T2WI上呈略高信号的病灶6个,8个呈等信号,11个表现为"结节中结节";增强扫描动脉期21个病灶明显强化;7个病灶内可见脂肪变性。结论:肝不典型增生结节癌变的早期MRI表现具有典型特征,对帮助诊断具有一定价值。Objective To investigate the early MR/findings of hepatocellular carcinoma （HCC） within dysplastic nodule （DN） （HCC within DN）, and to evaluate the diagnostic value of MRI. Methods Routine and dynamic MRI was performed in 29 patients with 32 lesions of ＂HCC within DN＂ proved pathologically, and all MR images were reviewed. Results 25 of 32 lesions （78%） were detected by MRI. 13 lesions were mild hvnerintense on T1WI. On T2WI, 6 lesions showed mildlyhyperintense, 8 were isointense, and the other 11 showed ＂nodule-in-nodule＂. 21 lesions showed obvi- ous enhancement in arterial phase of dynamic enhanced MRI. Fat degeneration was found in 7 lesions. Conclusion There are some characteristic MRI findings in ＂HCC within DN＂, and MRI can help the diagnosis of ＂HCC within DN＂.

关 键 词：不典型增生结节 癌变 肝 磁共振成像 

分 类 号：R735.7[医药卫生—肿瘤]