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肝门区胆管细胞癌的MRI诊断

Journal of Modern Oncology(2009)

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Abstract
目的:探讨肝门区胆管细胞癌的MRI表现特点及其鉴别诊断.方法:12例经手术及病理证实的肝门区胆管癌,其中男8例,女4例,年龄32岁-70岁,平均58岁,均行MRI平扫及动态增强扫描.结果:12例肝门区胆管细胞癌,5例病变位于肝总管,4例位于左主肝管,3例位于右主肝管,致相应肝内胆管扩张.肿瘤组织于T1W呈稍低信号强度,T2W呈略高信号强度,增强扫描3例显示早期强化明显,9例早期强化不明显,静脉期及延迟扫描12例均有中等程度的强化,表现为肿块团块状强化,受累胆管管壁不规则增厚并环行强化,2例梗阻区腔内可见到软组织肿块,4例观察到病变远近端胆管内播散结节.结论:肝门区胆管细胞癌于T2W显示伴随高信号的扩张胆管有略高信号的肿块影,动态增强扫描肿块早期有不同程度的强化,静脉期和延迟扫描呈持续性强化是其MRI表现特点.
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Key words
magnetic resonance imaging,hilar cholangiocellular carcinoma
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