胃肠道间质瘤的CT和胃肠双对比造影诊断  

CT and Double Contrast Radiography of Gastrointestinal Tract in Gastrointestinal Stromal Tumors

作　　者：杨宇洁[1] 程祝忠[1] 席晓秋[1] 

机构地区：[1]四川省肿瘤医院影像科,成都610041

出　　处：《肿瘤预防与治疗》2008年第2期198-201,共4页Journal of Cancer Control And Treatment

摘　　要：目的:探讨胃肠道间质瘤(GISTs)的气钡双对比造影和螺旋CT影像特点。方法:回顾性分析28例经手术及病理证实的胃肠道间质瘤的影像资料,其中24例行CT扫描,14例行胃肠道双对比造影。结果:肿瘤发生于胃21例,小肠5例,结肠1例,肠系膜1例。GISTs的胃肠道气钡双对比造影表现包括腔内充盈缺损或外压迹,局部粘膜展平,瘤周粘膜推移。CT扫描表现为肿块实质部分静脉期强化较动脉期明显,瘤体内可见液化坏死、囊变,多数瘤体以腔外生长为主,邻近胃肠道壁无增厚,转移病灶与原发灶的CT表现相似。结论:GISTs的CT和胃肠道双对比造影检查均表现出粘膜下病变的特点,而CT能提供更多的胃肠道腔外的影像信息。Objective： To investigate the imaging features of specific CT and double contrast radiography of gastrointestinal tract in gastrointestinal stromal tumors （GISTs）. Methods： Imaging features of 28 patients with GISTs comfirmed by surgery and pathology were retrospectively analyzed. CT were performed in 24 cases and double contrast radiography in 14 cases. Results： Twenty one lesions were occured in stomach, 5 in small bowel, 1 in colon and 1 in mesentery. The imaging features of double contrast radio- graphy were included intraluminal filling defect or outside compression, local mucosal flattered, periphery mucosal of mass displaced. The main imaging features of CT were included the solid portion of tumors enhancement, necrosis and cystiform degeneration within the mass, more than half of the mass lay outside the cavity in many cases, the CT imagings of metastasis were similar as primary tumors. Conclusion： Both CT and double contrast radiography can show trait of GISTs under mucosal, and CT may provide more information of tumors outside the cavity.

关 键 词：胃肠道肿瘤 间质瘤 体层摄影术 X线计算机 双对比造影 

分 类 号：R735[医药卫生—肿瘤]