胃间质瘤的影像诊断  

Imaging diagnosis of gastric stromal tumor

作　　者：崔法[1] 冯仕庭[2] 

机构地区：[1]广东省东莞市太平人民医院影像科,529300 [2]广州中山大学第一附属医院放射科

出　　处：《影像诊断与介入放射学》2004年第3期162-165,共4页Diagnostic Imaging & Interventional Radiology

摘　　要：目的探讨胃间质瘤(GST)的影像诊断价值。方法收集经手术和病理证实的GST8例进行回顾性分析,8例均行螺旋CT平扫和增强扫描,其中3例行MRI平扫和增强扫描,5例行上消化道气钡双重造影检查(GI)。结果肿瘤均单发,5例位于胃体,3例位于胃底,圆形或类圆形7例,分叶状1例,直径3.8-14.8cm,平均7.9cm;CT平扫肿块密度不均匀,增强扫描中度不均匀强化,以静脉期明显;MRI平扫肿块信号不均匀,增强扫描不均匀强化;GI提示胃黏膜撑开,可见龛影。病理检查7例恶性,1例良性。结论多种影像检查相结合,有利于GST的定位诊断和良恶性判断。Objective To evaluate the radiological diagnosis in gast ri c stromal tumors (GST). Method The imaging findings were retrospectively studied in 8 cases of GST. All the cases were proved by operation and pathology. Non-contrast and contrast spiral CT scan were done in all cases. Non-enhanced and enhanced MRI was performed in 3 cases. Gastro-intestinal barium study was perf ormed in 5 cases out of 8. Results All the tumors were solitary lesion. The tum or was located in the corpus gastricus in 5 cases and three mass were found in t he cardiac portion. Round mass was found in 7 cases, while the mass was lobulate d in the rest one case. The tumors measured 3.8-14.8cm, 7.9cm in average. Tumo rs presented in-homogenous in density or intensity, and moderate and in-homo genous enhancement, which was best visualized in venous phase. Tumors presented in-homogenous signal intensity, and in-homogenous enhancement. The findings of GI examination were expanded mucosal folds and niche. Seven cases were malign ant and one was benign. Conclusion Integrating various imaging modalities, it i s a propitious approach to make diagnosis on both the location and the nature of the GST.

关 键 词：增强扫描 平扫 胃间质瘤 影像诊断 GST 肿块 恶性 直径 检查 提示 

分 类 号：R735.2[医药卫生—肿瘤] R737[医药卫生—临床医学]