胃肠道间质肿瘤的CT诊断  

CT Diagnosis of Gastrointestinal Stromal Tumors

作　　者：管乃超[1] 王希明[1] 张卫国[1] 胡春洪[1] 郭亮[1] 

机构地区：[1]苏州大学附属第一医院影像中心,江苏苏州215006

出　　处：《中国血液流变学杂志》2011年第2期360-362,378,共4页Chinese Journal of Hemorheology

摘　　要：目的探讨胃肠道间质肿瘤（GIST）的cT表现及鉴别诊断。方法回顾性分析经手术和病理证实的14例GIST的CT表现，所有患者术前均行cT平扫和增强扫描。结果14例GIST中．肿瘤发生于胃3例．空肠1例，回肠4例，直肠l例。起源于胃肠道外问质瘤5例。其中良性3例，肿瘤直径均≤5．0cm．病灶在CT图像上表现为密度均匀，与周围组织结构界限清楚等特征；恶性ll例，肿瘤直径均≥6．0cm，病灶在CT图像上表现为边缘有分叶，内部有坏死，常常伴有深大的溃疡等特征。结论CT对胃肠道间质肿瘤的诊断及鉴别诊断具有重要价值。Objective To explore CT features and differential diagnosis of gastrointestinal stromal tumors（GIST）. Methods 14 cases which were proved by surgery and pathology were analyzed retropeetively. Both plain and enhanced CT were performed in 14 patients. Results Of 14 GIST, the tumors originated from the stomach （n=3）,jejunum（n=l）,ileum（n=4）,rectum（n=l） and 5 were extra- gastrointestinal stromal tumors. And 3 were benign and 11 were malignant.In benign GIST, the diameter of the tumor was all less than 5cm,with homogeneous density and clear margin on CT imaging.In malignant GIST, the diameter of the tumor was all more than 6cm,the tumors were lobular in shape,with necrosis within them,and usually with deep and large ulcers on CT imaging. Conclusion CT is of great value in diagnosis and differential diagnosis of GIST.

关 键 词：胃肠道 间质瘤 X线计算机 诊断 

分 类 号：R814.42[医药卫生—影像医学与核医学]