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目的:探讨肝细胞癌(HCC)的血供方式及CT表现。方法:回顾性分析 50例经手术、病理及临床发展过程证实的肝细胞癌的CT强化特点及征象。结果: 50例肝细胞癌平扫低密度 50例,合并高密度 5例;境界不清楚 31例,显示包膜 8例。动脉期病灶强化 46例,供瘤动脉增粗迂曲及病灶内肿瘤血管 18例,动静脉分流 10例。门静脉期病灶呈低密度 47例,血管受侵 25例;门脉癌栓 8例,伴发肝内子灶 10例;肝硬化征象 40例;肝门及腹膜后淋巴结增大 13例。结论:螺旋CT增强双期扫描技术能显示HCC病灶血供特点及较特征性的CT征象:动脉期病灶强化、供瘤血管增粗、病灶内肿瘤血管、动静脉分流、包膜、肝内子灶、血管侵蚀及静脉瘤栓、肝门及腹膜后淋巴结肿大。
Objective: To investigate the blood supply and CT findings of hepatocellular carcinoma (HCC). Methods: CT features and signs of 50 cases of hepatocellular carcinoma confirmed by surgery, pathology and clinical development were retrospectively analyzed. Results: In 50 cases of hepatocellular carcinoma, 50 patients had low density in plain scan, and 5 patients had high density. There were 31 patients without clear boundary and 8 patients with capsule. 46 cases of arterial lesion enhancement, tortuous tumor for tortuous artery and tumor lesions in 18 cases, arteriovenous shunt in 10 cases. Portal venous lesions were low density in 47 cases, vascular invasion in 25 cases; portal vein tumor thrombus in 8 cases, associated with intrahepatic lesions in 10 cases; signs of cirrhosis in 40 cases; hilar and retroperitoneal lymph nodes increased in 13 cases. Conclusion: The enhanced spiral CT double-phase scanning technique can show the characteristics of blood supply and more characteristic CT signs of HCC lesions: enhancement of arterial phase lesion, thickening of tumor blood vessels, tumor blood vessels, arteriovenous shunt, capsule and intrahepatic foci , Vascular erosion and venous thrombus, hilar and retroperitoneal lymph nodes.