胃肠道外间质瘤的多层螺旋 CT 诊断  

Multi-slice spiral CT diagnosis of extra-gastrointestinal stromal tumors

作　　者：陈东[1] 谢长浓[1] 黄泽光[1] 

机构地区：[1]广东医学院附属医院放射科,广东湛江524002

出　　处：《实用放射学杂志》2014年第6期954-956,982,共4页Journal of Practical Radiology

摘　　要：目的：探讨胃肠道外间质瘤（EGIST）的多层螺旋 CT 表现。方法回顾性分析经手术和病理证实的9例胃肠道外间质瘤的 CT 资料。结果9例原发胃肠道外间质瘤中,恶性7例,良性2例。其中2例发生在肝脏,2例发生在结肠系膜,2例在小肠系膜,2例表现为腹膜、网膜、小肠及系膜、结肠浆膜面及盆腔广泛弥漫散在结节,并与盆腔内结节融合成较大肿块,1例发生在右肾周间隙。病灶最大径约5.0-14 cm,平均9.6 cm,分叶状5例,圆形或类圆形4例。平扫病灶密度不均匀,可见大小不等囊变及坏死区,2例出现钙化；增强扫描动脉期均可见边缘及中心明显异常增粗或增多的肿瘤血管。结论胃肠道外间质瘤的 CT 表现有一定的特点。Objective To analyze CT features of extra-gastrointestinal stromal tumom（EGIST）.Methods The CT data of 9 patients with EGIST proved by operation and pathology were analysed retrospectively.Results Of 9 cases with EGIST,7 cases were malignant and 2 cases were benign.2 cases were originated from liver.2 cases from mesocolon,2 cases from Small mesentericin,2 case showed widely diffuse nodules scattered in peritoneum,omentum,small intestine,mesangial and colon serosa.In those nodules, some nodules from pelvic cavity wereinosculated into larger mass.1 case came from right kidney week gap.The biggestdiameter of tumomrs of each case was ranged from 5.0 cm to 14.0 cm （mean 9.6 cm）.5 cases showed lobulated shape,4 cases showed round or oval.All cases showed non-homogeneous density in plain CT,with cystic change and necrotic foci in 7cases,calcification in 2 cases.In arterial phase,all cases appeared significantly abnormal thickening or multiply tumor blood vessels in edge and center of those tumors.Conclusion EGIST has unique imaging performance.

关 键 词：胃肠道外 间质瘤 计算机体层成像 诊断 

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