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目的探讨周围型肝内胆管细胞癌的影像学特征。方法回顾性分析经手术及病理证实的11例周围型肝内胆管细胞癌的影像学资料。术前均行超声扫描(BUS)。11例中,8例行CT扫描,其中4例为先平扫后增强,2例行动态双期扫描,另2例先动态后延迟扫描。结果超声扫描所有病灶均呈低回声,均匀或不均匀。CT平扫病灶呈低密度,边界不清,增强扫描呈边缘中等强度强化。双期CT增强扫描,病灶表现为特征性的从周边到中心的向心性强化。病灶周围肝内胆管轻度扩张,局部肝被膜回缩明显。结论周围型肝内胆管细胞癌的影像学表现具有一定的特征性,其在与肝内其他常见的占位性病变的鉴别方面有重要价值。
Objective To investigate the imaging features of peripheral intrahepatic cholangiocarcinoma. Methods The imaging data of 11 cases of intrahepatic cholangiocarcinoma confirmed by surgery and pathology were retrospectively analyzed. Preoperative ultrasound scan (BUS). Among the 11 cases, 8 cases underwent CT scan. Among them, 4 cases were enhanced after first scan, 2 cases were performed dynamic double-phase scan, and the other 2 cases were first dynamic delayed scan. Results Ultrasound scan all lesions were hypoechoic, uniform or uneven. CT scan showed low density lesions, the border is unclear, enhanced scanning edge enhanced by moderate intensity. Dual-phase CT enhanced scan, the lesion showed a characteristic from the periphery to the center of the concentric enhancement. Lesions around the intrahepatic bile duct slightly dilated, local liver capsule retracted significantly. Conclusion The imaging findings of peripheral intrahepatic cholangiocarcinoma have certain characteristics, which are of great value in the identification of other common lesions in the liver.