小胆总管癌的多层螺旋CT表现  

Multi-slice Spiral CT Findings of Small Cholangiocarcinoma of Common Bile Duct

作　　者：许相丰[1] 杨津毅[1] 宋宏伟[1] 武广利[1] 程宇清[1] 

机构地区：[1]天津市南开医院放射科,天津300100

出　　处：《实用放射学杂志》2008年第2期211-214,共4页Journal of Practical Radiology

摘　　要：目的探讨小胆总管癌的多层螺旋CT表现。方法分析15例经病理证实的小胆总管癌多层螺旋CT平扫和三期增强扫描的强化特点,并通过曲面重组分析梗阻面胆总管的形态改变。结果小胆总管癌相对于胰腺在平扫全部呈等密度,在动脉期呈低密度10例、等密度3例、高密度2例,在门脉期呈低密度1例、等密度3例、高密度11例,在延迟期呈等密度5例、高密度10例;肿瘤表现为胆总管壁局限性环形或偏环形增厚13例,管腔内结节2例;梗阻面胆总管呈突然狭窄型11例、截断型4例。结论小胆总管癌多层螺旋CT平扫与增强扫描具有一定特点。Objective To analyse the multi - slice spiral CT （ MSCT） findings of small cholangiocarcinoma of common bile duct. Methods 15 cases with pathologically verified small eholangioeareinoma of common bile duct were undergone unenhaneed and three - phase contrast- enhanced MSCT scan. The entire morphologie changes of common bile duct were analysed with curved planar reformation（CPR）. Resuits The attenuation of tumor relative to pancreas was iso - density in all cases at plain CT scan,hypo - density in 10 cases ,iso - density in 3 cases and hyper - density in 2 cases at arterial phase,hypo - density in 1 case,iso - density in 3 cases and hyper - density in 11 cases at portal phase,iso -density in 5 eaaes and hyper - density in 10 cases at delayed phase. The focal wall thickening of common bile duct appeared as circular or eccentric in 13 eases,intraluminal nodule in 2 cases,common bile duct was narrowing sharply in 11 cases and ending abruptly in 4 cases at obstructive level. Conclusion The small cholangiocarcinoma of common bile duct is of certain characteristics at unenhaneed and three - phase contrast - enhanced CT scan.

关 键 词：胆总管 胆管癌 体层摄影术 X线计算机 

分 类 号：R735.8[医药卫生—肿瘤] R814.42[医药卫生—临床医学]