少脂肪成分的原发性腹膜后脂肪肉瘤的CT特征  

CT imaging features of fat-poor primary retroperitoneal liposarcoma

作　　者：张璇[1] 李雨洁 肖萌萌 罗成华[2] 孙侠 郭勇 Zhang Xuan;Li Yujie;Xiao Mengmeng;Luo Chenghua;Sun Xia;Guo Yong(Department of Radiology,Peking University International Hospital,Beijing 102206,China;Department of Retroperitoneal Tumor Surgery,Peking University International Hospital,Beijing 102206,China)

机构地区：[1]北京大学国际医院放射科,北京102206 [2]北京大学国际医院腹膜后肿瘤外科,北京102206

出　　处：《中华普通外科杂志》2024年第7期554-557,共4页Chinese Journal of General Surgery

摘　　要：目的探讨CT未见脂肪成分的原发性腹膜后脂肪肉瘤(PRPLS)的CT特征。方法回顾性分析128例经手术病理证实的PRPLS中43例CT未见脂肪成分病例的CT特征,评估内容包括肿块多结节状或多结节融合状、肿块的异质性。结果43例CT未见脂肪成分的PRPLS中,多结节状或多结节融合状28例(65%),单发肿块15例(35%);CT平扫异质性17例,增强异质性18例,平扫异质性和增强异质性13例,平扫异质性或增强异质性22例(51%)。结论肿瘤的多结节状或多结节融合状,特别是异质性有可能为CT未见脂肪成分的PRPLS诊断提供帮助。ObjectiveTo investigate the CT imaging features of fat-poor primary retroperitoneal liposarcoma(PRPLS).MethodsThe CT signs of 43 fat-poor PRPLS cases among 128 PRPLS patients confirmed by pathology,including multiple nodules composing or multiple nodules fusing,tumor heterogeneity,were retrospectively evaluated.ResultsOf 43 fat-poor PRPLS cases,28 cases(65%)showed multiple nodules composing or multiple nodules fusing on CT images,15 cases(35%)demonstrated single mass.Seventeen cases showed tumor heterogeneity on pre-contrast scan,18 cases showed tumor heterogeneity on contrast scan,13 cases showed tumor heterogeneity on both pre-contrast and contrast scan,22 cases(51%)showed tumor heterogeneity on pre-contrast or contrast scan.ConclusionCT signs of multiple nodules composing or multiple nodules fusing,especially tumor heterogeneity may help establishing diagnosis of fat-poor PRPLS.

关 键 词：脂肪肉瘤 腹膜后肿瘤 体层摄影技术 X线计算机 

分 类 号：R735.4[医药卫生—肿瘤]