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目的探讨MSCT对肝内肿块型胆管细胞癌(intrahepatic mass-forming type cholangiocarcinoma,IMCC)的诊断的价值。方法回顾性分析收治的IMCC患者30例,观察其CT平扫加增强表现,并总结其特点。结果CT表现形态不规则。平扫肿瘤均呈低密度,26例内有囊变坏死区,4例较小者病灶内密度均匀。增强扫描动脉期肿瘤呈环状、网格状轻度强化15例。门脉期和静脉期肿瘤29例呈渐进性延迟强化。门脉受侵3例。所在肝叶萎缩6例,临近肝包膜凹陷13例。肝门、腹膜后淋巴结转移12例。结论 IMCC的典型CT表现增强动脉期轻度的、环状或网格状强化,门脉期、静脉期表现为渐进性、延迟强化的特点,可有肝包膜凹陷等间接特征,有上述CT表现征象的,多可正确诊断为IMCC。
Objective To investigate the value of MSCT in the diagnosis of intrahepatic mass-forming type cholangiocarcinoma (IMCC). Methods A retrospective analysis of 30 patients with IMCC admitted to observe the CT scan and enhanced performance, and summarizes its characteristics. Results CT appearance irregular. Tumors were showed low-density scan, 26 cases of cystic necrosis area, 4 cases of lesion density within the uniform. Enhanced scan arterial tumor was ring-shaped, grid-like mild enhancement in 15 cases. Portal and venous tumors in 29 cases were progressive delayed enhancement. Portal vein invasion in 3 cases. Liver lobe atrophy in 6 cases, near the hepatic capsule depression in 13 cases. Hepatic, retroperitoneal lymph node metastasis in 12 cases. Conclusions The typical CT findings of IMCC enhance mild arterial phase, ring or grid-like enhancement, portal phase, venous phase showed progressive, delayed enhancement characteristics may have indirect characteristics such as hepatic capsule depression, the above CT Performance signs, and more can be correctly diagnosed as IMCC.