胆管细胞型肝癌的CT、DSA表现

目的　分析胆管细胞型肝癌的CT、DSA表现 ,提高对胆管细胞型肝癌的认识。方法　 17例经病理证实胆管细胞型肝癌的CT平扫及常规CT增强扫描 ,其中 6例加做病灶动态扫描 ,5例行DSA检查。结果　CT平扫所有病例均为单发低密度病灶 ,CT增强 17例不均匀轻度强化 ,其中 3例病灶出现大片低密度无强化区 ,部分边缘强化 ,2例病灶可见延迟强化区 ;15例肝内胆管扩张 ,其中 10例病灶内可见胆管扩张 ;DSA表现供血动脉轻、中度增粗、增多 ,僵直及肿瘤染色。结论　CT、DSA是胆管细胞型肝癌的重要影像检查方法 ,不均匀轻度强化病灶内可见胆管扩张是胆管细胞型肝癌的重要征象

CT and DSA Findings of Intrahepatic Cholangiocarcinoma

Objective To analyse CT and DSA appearances of intrahepatic cholangiocarcinoma,and to improve understanding of intrahepatic cholangiocarcinoma.Methods Plain and enhanced CT scanning were performed in 17 patients with intrahepatic cholangiocarcinoma pathollogically proved,6 patients(6/17) performed dynamic CT scanning,5 performed DSA examinations.Results Pre-contrast CT scanning was a single low density lesions in all patients,post-contrast CT scanning showed slightly inhomogeneous enhancement in 17 patients,3 patients(3/17) showed low density unenhancement area with margin enhancement,2 patients delayed enhancement;Intrahepatic billary delatation was found in 15 patients and was within the lesion in 10 patients(10/15);On DSA,5 patients showed enlaragement increasment and rigidity of supplying arteries and tumour stain.Conclusion CT scanning and DSA were important,investigative methods for intrahepatic cholangiocarcinoma,the billary dilatations with slightly inhomogeneous enhancement lesions is important sign in diagnosising intrahepatic cholangiocarcinoma.