周围型肝内胆管细胞癌的动态螺旋CT诊断

目的 分析肝内周围型胆管细胞癌（IHPCC）的CT表现,评价螺旋CT多期扫描的诊断价值。方法 回顾性分析经手术病理证实的IHPCC病人20例,均行CT平扫及动态增强扫描。结果 CT平扫均为大片低密度灶,病灶内和/或病灶周围胆管扩张。增强扫描：动脉期无强化6例,轻度强化14例;延迟扫描均有不同程度延迟强化。结论 动态增强扫描是CT诊断和鉴别诊断要点,病灶内和/或病灶周围胆管扩张及病灶延迟强化是肝内胆管细胞型肝癌的重要特征。

Dynamic multiphasic spiral CT diagnosis of intrahepatic peripheral cholangiocarcinoma

Objectives To analyse CT appearances of intrahepatic peripheral cholangiocarcinoma,and assess the value of dynamic multiphasic spiral CT in evaluating intrahepatic peripheral cholangiocarcinoma. Methods 20 cases of surgically and pathologically proven IHPCC were reviewed retrospectively. CT conventional and dynamic contrast-enhanced scans were performed in all patients. Results The main CT features include:pre-contrast CT scanning was low density lesions in all patients;cholangiectasis around and was within the lesion in all patients;in arterial phase there were no enhancement 6cases ,mild enhancement 14cases;in delayed scan there was progressive enhancement in allcases. Conclusion Dynamic contrast enhancement scan was important techniques for the correct diagnosis of IHPCC, progressive enhancement and cholangiectasis is important signs in diagnosing IHPCC.