肝肾血管周上皮样细胞肿瘤CT表现  

CT manifestations of perivascular epithelioid cell tumor of liver and kidney

作　　者：张媛媛[1] 王思奎 张红燕[2] 练延帮[1] 潘元威[1] 卢振威[1] 高剑波[1] 董军强[1] ZHANG Yuanyuan;WANG Sikui;ZHNAG Hongyan;LIAN Yanbang;PAN Yuanwei;LU Zhenwei;GAO Janbo;DONG Junqiang(Department of Radiology,the First Affiliated Hospital of Zhengzhou University,Zhengzhou 450052,China;Department of Pathology,the First Affiliated Hospital of Zhengzhou University,Zhengzhou 450052,China)

机构地区：[1]郑州大学第一附属医院放射科,河南郑州450052 [2]郑州大学第一附属医院病理科,河南郑州450052

出　　处：《中国介入影像与治疗学》2025年第4期251-254,共4页Chinese Journal of Interventional Imaging and Therapy

摘　　要：目的观察肝肾血管周上皮样细胞瘤(PEComa)CT表现。方法回顾性分析经手术病理证实的18例肝PEComa及5例肾PEComa,观察其术前CT表现。结果23例均为单发病灶,主要CT表现包括低/稍低密度(23/23,100%)、形态不规则(16/23,69.57%)、边界清晰(17/23,73.91%)、无包膜(21/23,91.30%)及增强后强化(21/23,91.30%)。18例肝PEComa中,13例密度均匀(13/18,72.22%),5例(5/18,27.78%)密度不均匀且见脂肪成分(5/5,100%)及血管增粗(4/580.00%)、少见出血坏死(1/5,20.00%)及钙化(0/5,0),增强后多表现为快进快出(16/18,88.89%)。5例肾PEcoma均呈不均匀密度、内见脂肪成分(5/5,100%),少见出血坏死(1/5,20.00%)、血管进入(1/5,20.00%)及钙化(0/5,0);增强后可呈快进快出(2/5,40.00%)、渐进性强化(1/5,20.00%)或无强化(2/5,40.00%)。结论肝肾PEComaCT表现具有一定特征性。Objective To explore CT manifestations of perivascular epithelioid cell tumor(PEComa)of liver and kidney.MethodsTotally 18 hepatic PEComa and 5 renal PEComa confirmed by surgical pathology were retrospectively enrolled,and the preoperative CT manifestations were explored.Results Single lesion of liver or kidney was found in all 23 cases,and the main CT manifestations included low or slightly low density lesion(23/23,100%),withirregular morphology(16/23,69.57%),clear boundaries(17/23,73.91%),non-envelope(21/23,91.30%)and enhancement after administration of contrast agents(21/23,91.30%).Among 18 cases of liver PEComa,most lesions(13/18,72.22%)presented asuniformdensity,whilesome(5/18,27.88%)presented as non-uniform density lesions often contained with fat components(5/5,100%)and thickened blood vessels(4/5,80.00%)but rarehemorrhagic necrosis(1/5,20.00%)nor calcification(0/5,0).Fast in and fast out of contrast agents were observed in 16(16/18,88.89%)lesions.Unevendensity andinternal fatcomponents were found in all 5(5/5,100%)renal PEComa,whichrarely withhemorrhagic necrosis(1/5,20.00%),blood vessels orientation(1/5,20.00%)and calcification(0/5,0).After enhancement,fast in and fast out,progressive enhancement and non-enhancement was observed in 2(2/5,40.00%),1(1/5,20.00%)and2(2/5,40.00%)cases,respectively.Conclusion CT manifestations of PEComa in liver and kidney had certain characteristics.

关 键 词：肝肿瘤 肾肿瘤 血管周上皮样细胞肿瘤 体层摄影术 X线计算机 

分 类 号：R735.7[医药卫生—肿瘤] R737.11[医药卫生—临床医学] R814.42