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目的探讨胆管细胞型肝癌的CT表现及DSA征象,提高胆管细胞型肝癌的诊断水平。方法19例经病理证实的胆管细胞型肝癌的常规CT平扫及双期强化扫描,其中6例同时行延迟扫描,15例行DSA检查。结果CT主要表现:平扫均表现为单发低密度病灶,边界不清;动脉期:所有病灶边缘呈不规则环状轻、中度强化;门脉期:病灶进一步强化呈网格状;延迟期:病灶不均匀向心性增强,略高于正常肝实质。DSA表现:供血动脉轻、中度增粗、僵直,肿瘤染色呈云片状、羽毛状,导管越是超选,肿瘤染色越明显。结论胆管细胞型肝癌的CT及DSA表现具有特征性,对诊断及鉴别诊断具有重要价值。
Objective To investigate CT features and DSA signs of cholangiocarcinoma and to improve the diagnostic value of cholangiocarcinoma. Methods Totally 19 cases of cholangiocarcinoma confirmed by pathology were performed routine CT scan and double-phase intensive scan. Among them, 6 cases underwent delayed scan and 15 cases underwent DSA. Results The main manifestations of CT were as follows: plain lesions showed single low-density lesions with unclear boundary; arterial phase: the edges of all lesions were irregularly ring-shaped and moderately enhanced; portal phase: the lesions further strengthened into a grid; delayed Period: non-uniform lesions to the heart to enhance slightly higher than the normal liver parenchyma. DSA performance: arterial light, moderate thick, stiff, tumor stained cloud-like, feathery, the more the catheter over the election, the more obvious tumor staining. Conclusion The CT and DSA manifestations of cholangiocarcinoma are characteristic and have important value in the diagnosis and differential diagnosis.